I think the whole Morinth thing might have been a more reasonable choice if bioware hadn't gone out of their way to show they're -exactly- the same strength. Morinth being more powerful might have made me consider bringing an insane mass-murderer on board. I only did it once to see how it was different - it wasn't. Fairly convinced the only change that happens on missions is a name swap. It's mad, there were deeper choices than that in the last "Make your own adventure" book I read.
Finished my second playthrough, anyway, Sort of disappointed in the whole continue thing, everybody's still talking like we haven't killed the collectors at all. Nobody died, and yet if I ask Garrus about our chances, he says we're going to lose people. Er, hello? Did he mean people losing their minds, because he's right about that one!
Do appreciate the ability to give tali a hug again, though.