At most, exclusivity has a marginal effect on overall graphic. I consider many other aspects to exceed this when looking at system pushing games. For one, budget has an effect on weather or not a game is/is not a visual masterpiece. Second, development time plays a role. If you have years to labor over every pixel, you can probably make a better looking game! And last but not least, developer talent is key.
Lets take Uncharted 2 as an example. The game was made in 2 years with a sub 20 million budget. Just for reference, MW2 had a budget of 50 million and GTA4's was over $100 mil!
Naughty Dogs, in standard development time and only quasi big budget $ made what is considered, to this day, the graphics king for consoles. They've held this title for almost a year now... I'd say talent had more to do with this than 'teh corez' and 'ps3z executivze!'
This is simply one example on one particular system. But basically, it can be applied to all devs on all machines. All exclusivity does is free up some resources in some areas and IMO is kind of an over-rated concept for making quality...
Wow, what a boring post I made! You didn't honestly read all of it, did you? LOL, GTFO! Stop reading right now and do something funner like inserting an M-80 into a fuzzy animals mouth or something. Seriously... go... are you still readin' this?
