If you guys take the time to read what he says, he's not acting that cocky. He talks about hos it would be an honor to fight Silva, how he's not the best BJJ guy...just because he's confident that he could beat someone doesn't mean he's an ass.
The problem I think a lot of people have with Mir is that the tone he uses when he speaks is very, shall we say, condescending. Never the less, I could see Mir/Silva as very competitive, but ultimately I think Silva is simply too fast for Franky.
Tito | Hendo | Wanderlei | Couture | Fedor | Urijah | GSP
...and of course Gina Carano, but for totally different reasons....