Besides RDR no other openworld game has rivalled GTA4. With the exception of a graphic comparison there is no way you can compair the likes of GeOW2 and Uncharted 2 with GTA4. Besides GAT4 would have looked better if released today (maybe even played better).
Just Cause 2 is fun and all but in no way does it have the quality of GTA4 and RDR. These games offer so much more depth and detail and that is what most reviewers look at. Doesn't mean that some reviewers and many gamers have a different perfective. Just look at Yahtzee, he found GTA4 boring and loved Saint's Row 2.
But most reviewers would appreciate that what GTA4 does and rate it AAA for it, even today.







