That would be a pretty good fight actually. Neither Aoki nor Shields have excellent Stand-up, I think Shields has the advantage in the Strength/Wrestling department, and both have a world-class ground game, with Aoki's being a bit more innovative and dynamic of course. That said, I think Shields would take this by Decision. Aoki is a tad bit overrated in my opinion, whereas Shields is a bit underrated, in my opinion of course. He's definately got the strength and skills to avoid Aoki's subs, however Hansen and Alvarez also had those qualities...anything could happen.
1-0 in Sig/Avatar bets. [B]UFC champions in 2010
LW: Sean Sherk
WW: GSP or Anthony Johnson
MW: Demian Maia
LHW: Lyoto Machida
HW: Cain Valasquez or Shane Carwin
MW's with the potential to dethrone Anderson Silva: Cung Le, Giva Santana and Demian Maia.