Are you shitting me?
Jon Jones is easily the BEST cheater ever and it isn't even close.
First off, he wins all the fights he cheats in, thus his cheating is highly effective.
Since you mention Jon's eye pokes, that is GOAT level cheating. He does it every fight, never receives any meaningful repercussions, his eye pokes are accurate as fuck.
He has cheated so much that he permanently has steroids in his body and he is being allowed to fight with steroids in his body. And win. Every fight.
TJ supposedly openly and publicly juiced at TAM (amateur mistake), doesn't have the good sense to avoid gyno, popped in an embarrassing loss and managed to lose two a title that wasn't even on the line.
How much worse at cheating can you get?