It goes both ways with the fanboy tactics. Chuck Liddell,Randy Couture, and Matt Hughes, Tito Ortiz are no longer around because they are quite a bit older that Shogun,Rampage,Big Nog, and shoot even Wanderlei.
The cage versus the Ring is a big deal in why fighters have done so differently. Couture looked horrible when he fought in the ring but would have been very competitve in the octagon versus Page,Shogun, or Wanderlei. Fedor was a monster in the ring but looked ordinary in the Strikeforce Cage.
Shogun is 31 now. 25 when he came over.
Rampage is 34 now. 29 when he came over.
Wanderlie is 36 now. 31 when he came over.
Big Nog is 36 now. 31 when he came over.
Cro Cop was the old man of the bunch but he debuted less than 6 months after he won the Openweight GP. He had short shelf life for sure but he was on top of his game when he came over.
Henderson is the one guy that came over super old but he started fighting at alate age and hes the only person to be comparable in physique for an old guy to Randy. Those 2 freaks of nature.
Chuck is 42 now. 37 when he fought Rampage in the UFC. 40 when he fought Shogun.
Randy is 48 now.
Tito is 37 now.
Vitor is the only guy of this group of comparable age to Rampage and Shogun and he is still very much apart of the game.
Hughes is 39 now.
The age difference is why the UFC guys are out. Chuck hung them up 2 years ago. Randy last year and Hughes in the last few years as well. Tito just hung them up too.
Cro Cop hung them up. Anyone that has seen Wanderlei and Big Nog recently can see they are fighting on borrowed time(Big Nog looked in awful shape in his last fight).
Comparing eras, its alot fairer to compare Rampage,Shogun to Machida,Evans,Griffin who have been very competitive in their matchups.