Nick diaz.
He's the only fighter on earth I'd pay for a trip to Vegas to watch fight. He never disappoints unless he's fighting someone that can neutralize him (GSP) or won't outright engage (Condit)
I think this fight with silva will be epic. He has a chin, he has solid boxing in spite of his 'poor footwork' , cardio for days, and his offensive bjj is top level, his defensive kits is awesome, and silva isn't a wrestler, plus he likes to engage and he isn't the same fighter he was 5 yrs ago, he's lost a step, maybe some chin (remains to be seen for sure) and taunts in fight like diaz does. I'd be shocked if this was a lop-sided ass beating.