Muay Thai, Karate, TKD... I think Muay Thai is the best for the standard and most effective kicks. I also think that Karate and TKD are the best for dynamic kicks which athletic guys like Silva, GSP and Le can pull off consistently.
Yep, Muay Thai. Even down to the conditioning of their legs, which is sometimes inhuman. I don't necessarily think Thai boxers fight smart (a by product of their culture seems to be a pride in taking punishment) and that they'd benefit from a Western boxer's mindset, but for sheer power and toughness, they're top.
As a blackbelt in TKD, I can say without a doubt that it's Muay Thai. The conditioning process is ****in' brutal...but effective. Also, their kicks are effective. All the really fancy flashy kicks in TKD or most forms of Karate are really kind of worthless...
Kung Fu has bad ass kicks but tae kwon do is 90% kicking 10 % punching. I used to take tae kwon do and most of the time all we did was kick.
This is complete bs. There are plenty of Thai fighters who are technicians rather than brawlers and who fight very intelligently. Go youtube Samart Payakaroon for example.