I thiiiiink Bayonetta is still bad on PS3. Not sure though.
But exclusives you should pick up:
Nier By god if you enjoy JRPG or story in your game in the slightest you should get Nier. Don't go in expecting fantastic gameplay, but it is fun enough. Set it on normal, go through and do all you can including NG+, it's just a really good story told really well.
Yakuza I've only played Yakuza 3 but it's easy enough to sum up. Some guy goes into a room and says "hmm, I really like Japan, suits, and punching people. What if I put them together?" Slow to start but a really fun in a silly kind of way with a nice, solid combat system.
Disgaea series First off: The first 3 are available on DS, PsP and Vita where applicable. But yeah, Disgaea is one of those strategy JRPGs that ramps everything up to the max. Level cap? 9999. Damage cap? There isn't one. And you're only likely to get to level 90-100 on your initial playthough with no post game content. Well done, fun and silly, it's a series to look for.
Vanquish If you enjoy Bayonetta and Devil May Cry but felt they could use a little more sci-fi and a lot more shooting go pick it up. Platinum's answer to Gears of War.
Shadow of the Colossus and Ico HD Do you really need me to tell you about this? Just get it.
Demons/Dark Souls So Dark Souls was on PC. But it was kind of garbage unless you set out to make it better. Either way, both games are really solid and really fun Action/RPGs that will wreck your shit if you're impatient or just plain bad. Just make sure to play Demon's Souls first, Dark adds a lot of stuff that makes the transition backwards difficult.
Dragon's Dogma: Dark Arisen Let's say you get the Souls games and you like them. Do you like Monster Hunter? Do you like D&D? Imagine all those put together but slightly worse, and topped off with the "actually a good Capcom game" seal of approval. Dark Arisen is technically an expansion pack but it comes with the full base game included.
That should keep you busy for a while. I mainly play Japanese-ish game and RPGs on my consoles so if that's not what you're looking for my apologies.