I have to admit that I am not familiar with everything on the list because I do not follow Ps3 games as closely. The ps3 is my brothers, and he prefers jrpgs. I help him look up upcoming rpg games, but sometimes miss the others.
Most of the games on your list sound like known characters, franchises, or well-known projects. A sleeper hit is by definition a quiet seller that builds over time. Any of those games can be successful, but they would probably be bigger sales games than what I would think of as a "sleeper hit." I fully admit the caveat that it could just be my own definition. I see the PSN as a better source of sleeper titles. the right game can catch on be a very popular download without huge sales charts or fanfare.
"But as always, technology refused to be dignity's bitch."--Vance DeGeneres
