I disagree. Joining Cerberus is IMO excellent story-material. Being able to see a confrontation from "the others" point of view is always more interesting than just sticking with the same side allt he time. If nothing else its more novel. The only thing I miss is in ME1, I'd like to take Saren up on his offer of joining the Reapers. I'd like that

Sure you could as a player have been given the option to join, but that would have made the game twice as large (not necessarilly bad though) and we would still be waiting for it.
As for a Cerberus fleet, they have one. Perhaps not very big but... They approach the Collector station if Shepard die. Seems cruiser size and I count six of them. Even if that is their entire fleet it's atleast something.
The council/Alliance doesn't do much for Shepard compared to Cerberus but the council does tell you why. They represent billions of individuals and can't act on theories supported by only a handfull of them without proof. Which is why they give you the authority to act on it if you think it's important. Say they did believe Shepard and started to make a vast fleet and prepare for/try to stop the reaper return. What if it wasn't true? What if it was just Saren playing Shepard for a fool? How then would they justify that desition to the general public? "What if it is true?" just doesn't cut it when dealing with such decisions.
IMO the Council does alot for Shepard. But when he/she is killed they can't do anything. The only ones interested
and capable is Cerberus (And I'm assuming the shadow broker just wanted shepards body to sell it tot he highest bidder) so it is a logical continuation once you've decided to let Shepard snuff it in the Prologue.
In essence, I support Cerberus on the scale it is in ME2 (Even though I assume EDI hasn't been given real info on Cerberus). But I would not vote TIM for Human councillor for example. On a galactic scale his methods simply doesn't work, that's why I'm also a bit suspicious of his intentions with the Collector base. Working for Cerberus is fine but one shouldn't let them get to powerfull.
quote]SimonTheFrog wrote...
Even an end-justify-the-means approach doesn't explain half of the stuff Shepard encounters and stops during ME1. [/quote]
Miranda's reason is good enough in my opinion. Having Rachni/Creeper/husk shock-trooperswould be very usefull and I still wish you can have rachni teammates in ME3 (

). Learning how to control them would be usefull.
Thresher maws are dangerous. Studying them makes sense. And while you're studying it you might aswell se if anything about it has potential as a bioweapon.
OffT: Why is it pronounced 'serberus' in English? The original name of the threeheaded dog is pronounced 'Kerberos'. Is it just another latinisation along the lines of f.ex. Ceasar? I am slightly annoyed every single time i hear 'serberus'. Perhaps that's just me