San Shou is your best choice if you wanna fight em in the ring.China San Shou champs faced off against Thai champs in a mixed rules bout which was basically muay thai rules plus the sweeps and throws in 2001.Thailand edged China 6-4....which is beter then any other art before it has done..espically at that level.

yea san shou for sure.

though here is a link to wing chun being effectively used against a (somewhat crappy) muay thai fighter.

grrr well there was but it seems to be down at the moment, so i will post it later.

Originally Posted by StealthMode

Is there any effective kung fu style out there that can defend well against Muay Thai

Absolutely, I would wager that the right person could use just about any legitimate syle of kung fu to succeed against fighters of any other martial art. The hard part is finding a legitimate school. Unfortunately there are a lot of frauds out there that really have no business teaching kung fu. The other thing to remember is that you have to make sure it's a martial school. Some schools only teach the forms and drills, which are a great work out but which will not teach you to fight all by themselves. However, there def. are legitimate schools out there that train with a strong emphasis on combat, you just have to look carefully.