well tae kwon do literally means to crush with the foot or something like that my korean is a bit rusty...meaning i dont know any korean cept that karate is more about punching and chopping and kick boxing well its boxing with a bit of kicking thrown in they all have similarities but most of it comes down to the technical aspects...the chambers forms and things like that as for the second question it all depends on the persons skill level and not their style of choice =op