Since some boxers bend to MMA i'd say Rey Mercer and Francois Botha. Although some MMA fighters tend to have larger forceps/biceps it doesnt mean they can punch that hard. Boxers trained for years to build muscles and they only intended to use them for punching while the MMA guys intended to grapple, choke, wrestle hence MIXED MARTIAL ARTS. The names you listed really can punch but imo Rey still tops them all. Ask Tim Sylvia
Anderson Silva KOed Forrest Griffith with a jab and dropped him three times en route to his light heavyweight championship. Silva has 20 KO's, Fedor Emelianenko only has 11 KO's I give Silva the edge.
Fedor Emilienko hands down On second thought. Roy Nelson is up there.
I might be wrong, but I would have to put my money on Big Country. He's not the most technical striker in mma, but if he lands that right it's a wrap.
You are a phacking racist jealous coward.
Kimbo Slice and all other black fighters in the MMA.
What's mma
Scott Voss look him up.
In my opinion, Fedor, Alister, Mark Hunt, and Big Foot have strongest punch among all MMA fighters.