Re: boxing vs taekwondo
Basically, in a street fight, I'd say boxer wins 99/100 times pretty easily. TKD has no real room to work in MOST street fight scenarios.
In the ring, it comes down to the person. A guy like Tyson will fair much better, because he wades in and destroys from up close, while a guy like Ali who stays back more and actually boxes will be subject to the kicks. I'd still give it to the boxer in most cases, though.
HOWEVER, in my experience, the greatest asset that a boxer will have over pretty much any other martial artist is that boxers train for their sport by actually doing it. More than any other sport, boxing stresses sparring and competing at 100%. Almost every single TKD person I've ever known, internet posters or otherwise, trains against the air, and competes in either semi or full contact point sparring. Whens the last time you saw a TKD tournament where the winner is the guy who knocks the other guy out (or hell...even the guy who has won the majority of 12 full contact nonstop rounds?). That alone would, in my opinion and that of many others, is enough to give the boxer a serious edge. Practicing only takes you so far, experience gets you the rest of the way.
Boxing is like a handjob, and MMA is like a hot sweaty orgy with 5 chicks. I could never say no to a handjob, but which would you rather have?