Slice, for sure.
I just think he's got less power in his hands than Tyson, and the rest of his arsenal is only so so at best. He's still way bigger than I, with probably better hands than me too. Even so, I'd still rather deal with him than Tyson.
Plus, he just seems way cooler, always just loving to fight and improve and such. And cooler as a regular joe too. Like, I think regardless of who won and who lost, Kimbo and I'd go light up out back the arena afterwards, and smoking with Kimbo Slice would be pretty epic, to be honest.