I just think the point of all of this is that this is Mixed martial arts and if you think one style is the best then you're going to get destroyed. Even as a striker, if you want to take tkd to learn proper form, take something else like Muay-thai along side that to figure out where it comes from and how it works.
I do this with my jiu-jitsu and I'm sure that this method works for striking too.
Sig by Toxic
Barnett - Toquinho -Werdum - "Nurmie"
Z. Gurgel - Morango - Rocha - Tiequan