Igor Vovchanchyn imo.
110-12 fight record (kickboxing and mma combined)
Had a 30 fight win streak, was only 5'8 and fought in the heavyweight division. KO'd much bigger and stronger guys than himself.
This fucker has screws in his elbows and his right hand has had to be reconstructed multiple times from KOing too many people.
*awaits the UFC nut huggers who tout cock chestnar and his mighy 4-1 record as the greatest fighter in the world
