Problem is there is no good or bad right.
Destroy we kill the Geth, if we haven't done so already, and EDi, plus all synthetic life. However we free the galaxy from the Reapers and we win. The cycle chooses what path/ future we they can build, and decide whether to continue the cycle, or end it as long as they can.
Control you save everyone. Your former Shepard now controls the Reapers, but the Husk army as well. However Shepard does not free the Reapers, nor does Shepard let the husk die in peace. He, or she instead either uses the Reapers, and the Husk army as a police force, or Dictator Shepard. Then you have to consider if Shepard is deciding how the galaxy should live their lives, well the organics, and synthetics, then your taking away free will from them. Nobody would want to oppose Shepard because Shepard commands the Reaper, and the Husk armys, and any Indoctrinated agent if I might add.
Synthesis. You make everyone the same in DNA. You stop the cycle and everyone is at peace. However nobody in their right mind is theirself. Where is the hate, the sorrow, pain, revenge, bitterness. Was it right to synthesis everyone without considering the fact Shepard synthesis the husk. How do they now feel? Are they not angry at the Reapers for what they did to them? Then there is a point when everything stops. How would civilization advance, if all is already done. There would be no point of living on, and no point in anything. Everything would be the same. If everyone acted the same, then where is the opinion of the one disagreeing with another person? Then there is the catalyst it'self. It programming is done, and it has no purpose. What's it going to do? Then there is the thing about what it said. Synthesis is the FINAl evoultion. That means no more adapting. Moreover we give the Catalyst what it always wanted synthesis. What did the galaxy want? TIM wanted to control the Reapers, yet he was Indoctrinated. Anderson wanted to Destroy the Reapers. Hackett wanted to Destroy the Reapers. Our squadmates that we have wanted to Destroy the Reapers. Yet what about the player. Is it about what you think is right, or what the galaxy thinks is best.
But I am getting ahead of myself. The point of that matter at hand is the endings are not perfect, however did you do what was best for the galaxy, or what you thought was best? You may say I picked Control to save everyone, but what if the galaxy didn't want you to pick control? What if they wanted blood for the horrific crimes the Reapers have done. Do you deni them revenge?
Did you pick synthesis to save everyone from the cycle continuing, or did you pick Synthesis because you think it's the best thing for the galaxy. What if the people did not want to be Synthesised? Would you synthesis them if they said no. Their are many people in the galaxy who would not agree with synthesis. Yes in the ending of synthesis it does not happen, but how can they, if they are rewriten?
If you pick Destroy, what are the synthetics going to say? Will they be okay to die, if it ment seeing the Reapers pay? Well if you listen to the galaxy's cry, then yes. EDI said she would die for Joker, Shepard, and the Normandy crew if it ment this war would end. The Geth said there would be no more compermising with the Reapers. So if they told you this after the catalyst has said his thoughts. Would you still pick Destroy?
Now you may say, well if you say the synthetics are okay with dying, then why can't the galaxy be okay with control, and synthesis? Well let's look at this this way. Hackett told us that TIM is crazy, which he is due to him being controlled in all. Then we see what happens when someone is given to much power. TIM believed in controllling the Reapers so much he had to implant Reaper tech in all of his troops, and the abducted coloniest to use for as his army. TIM even begins to crave for power at the end of ME2. If you blow up the base he is beyoned pissed, however if you don't TIM is very happy. Now Then TIM's lust for power takes are darker turn. He then begins to have his workers turn people into husk for his experiemnts, yet claiming he is doing it to save Humanity alone. Now if you look at Cerberus reputation in the galaxy in ME1, it's not that bad, as it does in ME3. All of this happened due to TIM wanting control. Now If Shepard is going to pick Control, and the galaxy's people tell Shepard that he, or she is going to end up like TIM craving for power, would you not listen to them? Would you believe the catalyst over the people of the galaxy your Shepard is fighting to save?
It may not seem how is this not what the galaxy would say about why Shepard should not pick control, but it is. If you go renegade Shepard, and pick control in your mind you did this to save everyone right, yet what does Shepard think? Let's find out. As the EC epilogue starts in renegade control Shepard sounds like he, or she is craving for power, and will not have anyone get in his/her way. From removing one dicator you replaced another one.
However if you pick Control as Paragon Shepard it's not that bad. Yet now Paragon Shepard has to maintain that once ORGANIC feeling that holded true to his, or her beliefs. Yet how will the galaxy react to this? Again in the players mind you saved everyone, but what does everyone else think? Just a few seconds ago Reapers are killing all the people fighting them in the galaxy, and now the very hero they all thought was going to solve the Reaper problem takes over as the Reaper's leader, only to use the Reapers to enforce the law in the galaxy. Nobody is going to have a problem with that? Doubt full, yet again the slide shows don't show this, yet it should.
Now for synthesis. Gravin Archer. Believed he could save everyone iforganics just combined with synthetics there will be no more wars with the Geth sounds familiar. However he did nost consider how his brother felt. Gravin kept pushing his own brother beyoned the limates, and in the end Shepard tells Gravin that did he even see what he has done to his brother. All in the name of synthesisng to save everyone, yet forgot about how his brother felt. Later in ME3 we can find him, and he tells Shepard that he is sorry for what he did to his brother. Now there is Javik. He's seen his own people been synthesised by the Reapers. True this is not the same thing we see as in synthesis, but it's still synthesis is it not, just not in the version at the end if you pick Synthesis. No way Javik would let this happen after again what happened in his cycle. And if Javik says Synthesis should not happen, if a Hanar heard Javik say this, then what do you think the Hanar will say about Synthesis? I am only pointing out that the Hanar view Javik as a god, and if Javik said that synthesis should not happen, then the Hanar would stand with Javik.
Furthermore we have the Leviathans. Now way would they want everyone to be the same. They would rather have Shepard pick Destroy, and control. Yes I know what your going to say, well in Destroy you give the Leviathans everything. The same could be said in control. Leviathan would still want to control the Reapers, and now that they know Where the catalyst ( Shepard) is at. You don't think the Leviathans would not try anything against Shepard the intellegence now would they? And if the Leviathans Do take Control of Shepard.The Leviathans have control of the Reapers, Husk, and Indoctrinated agents.
But back to synthesis. Leviathans would go against Synthesis. Now take a look at the Korgan. Only reason for them to have Shepard pick synthesis, is if you cured the Geno, however if you cured the Geno, then their support of synthesis goes out the window. Then we have the Geth. Why do they need synthesis when they have their upgrades? Is Legions death not worth more than it already is? Then what about the Quarians, why should they want synthesis, if it gains nothing for them? Sure maybe to help with their immune systems, yet do we see it in synthesis? No.
Then the Batarians come into synthesis. Why should they want to be synthesis, and be like everyone else? Oh and I forgot to mention do you think the Batarians are just going to let a "former Human" lead an Army of Reapers, that can harvest, or kill all the Batarians? Not at all. If fear plays into this, then that's not how a leader should be to his, or her people. Anyways then we have the Rachni queen if you saved her in ME1, and ME3. Does she want synthesis? If she is going to have to live in a world where the very monsters that took her children away from her, and turned them into foot soldiers and had her chained up like a pet. Is going to want Shepard to pick synthesis, or control? She has every right does she not, or no?
Well this about it. As I said I can go on, but this is enough. You can either say I am ranting, or think about this. I really don't care because in the end it's all going to happen again.