That is really an opinionated answer, mine would have to be Tang Soo Do, though.
-I would say Tang Soo Do.... because Chuck Norris uses this style lol

Charles Ferraro is the founder of Tang Soo Do Mi Guk Kwan.

There is no actual known founder of the Korean martial art Tang Soo Do, however the name for the art of Tang Soo Do was adopted by Hwang Kee, the person who founded Moo Duk Kwan.

They are both striking arts. Tang Soo Do is a Korean based form. Until recently most of the kata could be clearly traced through Japan to Okinawa and Shorin Ryu Karate. Much of the Tang Soo Do schools have converted into the Taekwondo styles. Chuck Norris originally learned Tang Soo Do.

Tang Soo Do is not a very soft, flowing style. Most of the moves are crisp and hard.