Angles is what beats Silva. Cro Cop proved that with the left off the ropes that put Silva on his ass. Liddell has been mixing his style up pretty good calculating when he's going to be aggressive and when he's going to move and counter. Chuck also throws a better variety of punches than Silva, and from different angles.
Silva is a FIERCE fighter who seems to wake up when he's been hit hard. He's got two speeds - 0 to 100 to 0 to 100 - fighting like a wolverine. He's physically strong, well balanced and extremely dangerous in the clinch, and though he swings wildly ALL of the punches are fast
to the point that I've seen some of his opponents physically moved from a forearm, rather than a fist, landing on their upper body. I think Silva's aggression can cause problems for Liddell who's fights with controlled aggression. Or it can work against him as Chuck could move and counter him effectively for the knockout.
I ain't making a pick yet....it's too damn early and the fight's not even on the radar......yet.