In my opinion, Anderson Silva is the top dog in MMA. What he did this past weekend to Stephan Bonnar was awesome. Silva makes good fighters look bad. He is the 1st fighter to stop Bonnar. Many want to see him fight GSP and Bone Jones. Hopefully these matches will happen sooner than later (as Silva is in his late 30s now). As far as today is concerned, I think he's the best.