New PS3 owner looking for game recommendation

Hey guys,

Recently got a PS3 so I only own a couple of games and I'm looking to get a new one. What would you guys suggest? Was thinking about picking between the following:

God of War Collection (and GoW 3 later on down the road)

Darksiders

AC2

Demon's Souls (I know it got great reviews but I'm hesitant to get a brutally hard game =)

Ratchet and Clank: A Crack in Time

Feel free to add your own (don't want another shooter atm though)

mgs4

killzone 2

and uncharted 2

also check out the game recomendation thread at the top.

Read and post your question in the Recommendation thread.