My one issue with the "exclusives" argument

[sales2099]

CGI-Quality said:

colafitte said:
Alan Wake is not a game considered an exclusive for any platform, but in a comparison with ps3, Alan Wake is available on X360 and not on PS3. You can have a PC or not, but this doesn't change the fact that if you only have a ps3 you can't play Alan Wake.

Of course not, but the 360 and PS3 don't exist in a vaccuum. 

Ofcourse not, but there is nothing wrong with a rivalry, which basically points out 2 opposing sides in a sea of competitors. This is no different. Nothing wrong with limiting a comparison to 2 entities and only 2 entities if one so chooses to.