Currently have the following 3D games for the PS3:
Killzone 3, Black-Ops, Gran Turismo, Motorstorm demo, Top Spin 4
Motorstorm is definitely my favorite with 3D, and can't wait til the full version is out. I like GT, but the 3D effect doesn't look like much (at least to me). The shooters are nice in 3D, but perhaps not my genre. Top Spin 4 is a nice game - but 3D adds no enhancements to gameplay.