I've always thought that the game was always a bit too safe with how easy it was to save everyone both in Mass Effect 2 and Mass Effect 3. Just through normal play, I was able to save everyone during the suicide mission, and never really had to deal with too many of the 'tough choices' in Mass Effect 3, since I had enough points built up that I could tell my crew mates 'Fuck you all, I'm Shepherd', and everything was alright.
I kind of wish that the third game was a lot more blood thirsty than it turned out being...
I mean, the best moments in Mass Effect 3 ultimately are when you go ham shit on everything and basically kill everyone.
Killing Mordin and Wrex for example is amazing... But most players never witness that because they are too tied up to keeping the game nice and neat. I wonder if rewarding players for making 'bad' decisions would allow for more dynamic and interesting gameplay, since people wouldn't naturally be inclined to try to keep as many people alive as possible?