I'm definitely getting Killzone 3 and I preordered the sharpshooter gun.
As for Marvel vs. Capcom 3, I will hold onto getting it until I can play it myself before I buy. I only want to do that because I wasn't big into MvC2, but I liked TVC a lot.
Lately I've been trying to decide what game to work on (for my PS3 after finishing Naruto: UNS2, so awesome). Played some Trinity Universe, but a little stuck. Played some Atelier Rorona (almost half way done), and while I like most of the game, the only thing that bothers me is having a lot of extra days left after completing a mission and want the extra days to just end. I played a little Resonance of Fate. Despite being a Tri-Ace fanboy, I honestly just don't like the game at all right now (but want to give it more chances, mostly because of its battle system). I tried playing some of my Gundam Senki import, but a dark mobile suit keeps killing me towards the end of the mission. Played some of my Tales of Graces F import. I finally figured out what I was suppose to do and now on a mountain pass (definitely really like the game). Play Explodemon on PSN at least once a day, which is a fun game. Doesn't feel as smooth as I'd like, but sort of gives me a Mega Man X vibe.
I would like to finish Dead Space so I move onto Dead Space 2, but since I'm further in Assassin's Creed II, I kind of feel I should play that (on sequence 9).
Also hope to finish Halo Reach co-op on 360 soon. Played some DJ Max Portable 3 on PSP yesterday. Been a while since I played my Wii, but I really need to play more DKC Returns, Kirby Epic Yarn, and Epic Mickey.