Kickboxing as you already know, use straight and direct techniques to win against the opponent. Although Kickboxing and Taekwondo's techniques is pretty much alike, I think the latter use more of those "flying kicks" or the like too much that may turn to be their weakness.
As you can see in this video, the kickboxer always get the upper hand over the taekwondo's fighter. Well, you be the judge...
If you watch this video carefully, the Kung Fu is of Drunken style. It's a bit funny looking at how the Kung Fu guys fight. I think something is not right with the Kung Fu style they used as the karate guys always get the upper hand in that fight.
It's a fight between Shaolin Kung Fu and Karate. This is an old video but at lease we still can see what had happened in the ring. I really like to see the result of this match.
This is a great moves but I'm not really sure if all those kicks and punches would ever feasible to be used on street fight. Anyway, it takes time and long hours of practice to perfected the moves. Congratulation, dude. You've made it!