There are so many people on here who think they know it all, when in reality they know fuck all! Right............
Randy Couture destroyed chuck liddell in their first fight, and was subsequently knocked out in the other 2 matches. Nothing to be ashamed of, Liddell is seen as the best 205lb fighter in the world by alot of people. Opinions may differ but until he and the pride guys fight (funny how rampage wont take the rematch) everyone is entitled to their opinion. His knockout power is almost legendary - look at his long list of KO's.
Randy is the first and only man to hold the Heavyweight and Light Heavyweight titles in the UFC, holding each title 2x. He manhandled Vitor Belfort when he was deemed unbeatable, and has also beaten Kurt Angle in an amatreur wrestling match.
Nobody knows how Bruce Lee would have fared, but he was very strong for his size and had scary power in his punches and kicks. I have no doubt that he would have been able to beat the shit out of guys like Jens Pulver, Phil baroni etc had he lived in his prime today. Dont look at him as a Kung Fu actor, look at him as a man who adapted to real life situations and designed and perfected a style which is just about perfect. He was very clever and had an ability that has rarely been seen.