you could start here and work your way up, and they are listed by score. also gamespy is now a PC site so you ay not see games made in the last yr. or so listed.
http://ps3.gamespy.com/index/reviews.html?constraint.bool.article.is_editors_choice=is_true&constraint.return_all=is_true
but right off the bat since i know the games that others are going to be listed in this thread i'll throw out a few that may not get listed.
Valkyria Chronicles
Brutal Legend
Starhawk (if you want t shoot people, play online, an would love to drop a building on someone then this games for you)
Vanquish
Heavenly Sword (nothing like God of war butjust as if not more violent with a women leading the charge
Resistence3
Mod Nation Racers