Katamari is fun, I honestly got bored of LBP quicker than I thought I'd.
Dead Space 1 is amazing awesome(In my opinion of course), 2 isn't that bad but it feels lacking from 1. Dead Rising 2 is just your normal 'LEZZZ GO AROUND AND SMASH ZOMBIEEEEEZZZZZ" with a timer on every single 'mission'. Bayonetta is something like DMC I s'pose, I played it through one time and never looked back/think about it.
Personally, this is what I currently 'love' on my PS3-
Crescent Pale Mist
Bioshock 1/2
Dead Space 1/2
Demon's Soul
Darksiders
Fallout 3(3 felt a little awkward 'tho)/New Vegas
Yakuza 4
Red Dead Redemption
Katamari
Eternal Sonata
Star Ocean 4
Resonance of Fate
Valkyrie Chronicles 1/2
3D Dot Game Heroes
Uncharted 1/2
And some others which I can't recall now.
EDIT: @Slate - Dark Souls is coming out in Fall this year? Are you serious? :O