He has had 3 defenses in the UFC. This division is young. The #2 ranked FW isn't even in the UFC. Frankie just dropped to 145.
Koch was supposed to fight and got hurt, young but undefeated. Lamas is there. Korean Zombie.
It will be over a year that he will have sat out. He has been dominant, but he hasn't cleared the division and held his title for years like GSP or Anderson. And Jones has just made beating the top 5 LHWs look too easy. That is why I list him as "dominant".
Aldo is great, but he hasn't looked like Jones and doesn't have the defenses GSP or Anderson does.
He hasn't in the UFC, but in the WEC he was running through guys left and right, that savage beating he laid on Faber was absolutely brutal. People were all over Aldo back in 2010 but for some reason he's been less than stellar in the UFC, maybe it's because he's hurt often but yeah, WEC Aldo was a killer.