What are some good ps3 games similar to Batman Arkham Asylum and/or Assassins Creed 2?

Metal Gear Solid 4 is the closest for the ps3 to these games, and the game is great. They are vastly different though, and MGS4 got more game of the year awards than I can count|||yeh i agree with metal gear solid 4, its similar but different, you get a great single player and a awesome multilayer which gets quite addicting as i would know lol