Salient Archer wrote...
It’s interesting to see that what was once considered a renegade action now leads to the “paragon” conclusion to the series. Which I guess is where I’ll start to dissect it a little bit; I guess the first point most raise is that Shepard’s perception of what is right and wrong has now been clouded by the Reaper indoctrination (much like how the Codex points out) and hence why he doesn’t actually see this option for what it really is, but that also raises another issue, which is “why would Shepard actually care if it was blue, red, purple, tangerine or pink with plaid stripes?” the simple answer is: he wouldn’t, the blue paragon and red renegade options are only something us the player are witnesses too, it’s a system for us to judge quickly and easily what those options are. So if we separate the colors out of the equation, we could look at it from the point of view that Shepard had already once sided with the illusive man (an agent of the reapers) and potentially could see the value in the dangled carrot of power that is the “control ending”, not only this but Shepard also showed he was able to help secure one of the most crucial bits of tech in the universe and that he was willing to sacrifice humanities soul to do so, proving that he was malleable and more willing to see things from the enemies perspective, not only making him easier to indoctrinate but that he had enough clout to keep around as an asset due to his outcome focussed attitude. This might also have been the easiest way for the reapers to get Shepard out of the picture and remove him as a liability in their war against organics.
This could be paralleled with the alternative low EMS option of Destroy being the only option, demonstrating Shepard’s desire to overcome the Reapers but never actually having the strength to do so. Either way the Reapers win their psychological battle with Shepard and in both cases plays to Shepard’s weaknesses to take him out of the picture one way or another depending on his moral stance. This could possibly just be demonstrating their desire to take the path of least resistance.
Literalist: The biggest difference the base makes in the game is whether the Reaper Heart or Brain is in the Crucible. Since those different components lead to different default choices, is it not logical to assume that the Crucible's construction plays a role in the order the choices are presented?
My main counter to this is that the platform that Shepard is standing and hence the platform in which Shepard’s choices are presented are actually on the Citadel side and not the Crucibles and should not be affected by the crucibles construction or materials. Having said that, the StarChild does say he was altered (to what extent we don’t know) but regardless, why do the other choices eventually present themselves anyway, as this is not based on the crucibles construction or materials but rather Shepard’s EMS (Re: Will power) if this is to be the case?
Alright, Archer. I finally have the chance to respond to you. If anyone else sees something they want to comment on, chime in.
1) Control as the default option, IT perspective=complete indoctrination: I can see what you're saying. It's a good point. The Reapers could be using a renegade Shep's tendency to achieve power (as evidenced in the previous ME's as a "humans first" mentality) as the very hook to catch him off-balance and indoctrinate him. The paragon who chose to save the base simply out of not seeing a better option could likewise be enticed into thinking that their reservation in using the tech is the key to victory. Considering this from both sides, a claim to personal responsibility or a drive to use your own power to enforce peace, can both be an explanation for Control to be the default choice for a Shepard who saves the Collector base.
2) As for this point, I would argue that although Shepard is indeed on the Citadel when the Crucible docks, the fact that the device docked with the Citadel has created a singular new
system. Consequently, the construction of the Crucible would affect the choices Shepard has.
Now, with point (2) I'm playing something of a devil's advocate. After all, the Crucible construction factors in EMS points. Since EMS is a score that also is raised by sparing Anderson, something that is
motivational and can apparently affect the machine's functionality... this makes no sense. But you know this

In any case, I would like to take this moment to again point out my suspiscion that the Crucible is an indoctrination device on a scale never achieved before, and that the Reapers want us to use it. There has to be some reason for the Reapers to be amassing humans on the Citadel. I think the Crucible combined with our genetic variance is the key to their ultimate weapon. This could have severe implications for the ending...I'm thinking of starting a thread about about this idea