I have a PS3 and love the uncharted series and GT5.
I don’t know if I’d want them on the PC though, GT5 and the uncharted games are just perfect excuses for me to keep the PS3 lol
Joking aside.
GT5
Heavy Rain (if only to allow me to enable v sync, screen tearing in Heavy Rain was way too much)
Uncharted (if only to see what they could do, naughty dog are very good at squeezing the very last ounce out of the PS3)
Wipeout HD (if only to get the game in true 1080 HD)
Red Dead Redemption as lets be honest. Rockstar did kick loyal PC customers in the teeth with this one, should have been released for PC from day one.
MGS4 would be good as well
However, this is the reason I’ve got my PS3. Way too many great titles for PS3 to get rid of it. I was able to sell and not miss my xbox 360 (apart from the 360 pad which you can actually use on a PC lol) but I’d miss my PS3 a heck of a lot.