Yeah... a couple of those games you listed Spartan are on PC as well, Bioshock for one thing, and it will be better on PC imo cause better graphics, actually, just about anything on PC will generally be better graphics.
crap, g2g, lol
but yeah, there are at least 3 or 4 games in there that arent exclusives
and the might and magic one is the same as the PC one with extra single player and reworded multi