So exactly what kind of games does the ps3 sell best?

[Dolla Dolla]

I think the OP has a good question.

He's not asking what games have sold well, he's asking what sort of games sell well on a playstation no matter what?

Shooters generally sell well on the 360.

Nintendo is known well for their Mario's, Zelda's, Pokemon's.

What do Sony platforms always sell well? I think your Jack-of-all-Trades bit speaks true, because Sony's first two systems have had such a high userbase that ANYTHING could sell well.

If I had to put my finger on one such thing, I would say 3rd person adventure games normally do well on Sony systems, no?