Under my command, every mission is a suicide mission!
Joking aside, I'm going to find a way to kill off chobot and that douche with the fauxhawk thing. First chance I get, I'm shooting them in the face. Miranda can take one, two or three for the team, I could care less if she dies.
Ashley's life hangs solely on whether or not she apologizes to me for her grumpiness in the second game, and whether or not she reconciles her blatant hatred for alien species.
Everyone else can live or die as they please, so long as I end my game with Garrus, Legion (so I guess as long as the geth survive, his body isn't so important), Joker, Mordin, The black guy from ME2, Zaeed, possibly Thane, and Carth. Ha, just kidding about Carth. I'd like to see him in Mass Effect 3, then we'd really get stuff done.