Which is the more impressive win after moving up a weightclass?

[djacobox372]

Anderson, GSP, and DC were all favorites, so how can they be considered?

Randy over Tim Sylvia, nothing close.

Randy was an underdog, coming off a KO loss at LHW, he was considered past his prime, and Tim was huge for the weight class and to that point the most dominate HW in UFC history.

 

[Gambit MMA]

penn subbing hughes

 

[cheesus]

GSP.

Anderson matched up very well against Forrest stylistically, Bisping is/was a tough match up for GSP & had overall better skills than Forrest imo...tough, good TDD and a good sized MW.

 

[TriangleMonkey]

Whitaker going up and beating everyone including Yoel 1.5x

 

[nastyleft]

Bj Penn that moved up to fight the no 1 p4p fighter a weightclass up is the most impressive.

Let's also add, Hughes was on a 13 fight win streak.

But I get it, that was 15 yrs ago, most guys voting GSP beating Bisping probably weren't even old enough to watch the UFC in 2004.