Ignoring doube games I bought as experiment - say to see how UT3 plays on a console, etc. - or me it's easy:
Valve games, most FPS where possible and/or where editor/mods is an option or games like Oblivion with better graphics, mods and editor I get on PC.
PS3 for exclusives/multi-platform
Wii for Nintendo games.
Pretty boring now I think about it!
Try to be reasonable... its easier than you think...







