When Anderson meet fan favourite match like Silva vs Sonnen he beat Sonnen easily. When he met true contender Weidman, Weidman KOed him. Also Weidman was youngest guy Silva fought during his title reign. When Jones met Rampage, Jones looked like superhuman. When Jones fought true contender Alex he nearly lost the fight. Also Gus was the youngest fighter Jon met during his title reign. My point is if you fight true contenders constantly, it's really difficult to stay at the top. No fighter bashing. Of course it's business. That's why they'll make fights that fans wants to see.