Ill give you some help in choosing, Judo it gives balance and speed of your movements, Aikido : Gives u the ability to fight with your legs it teaches u powerful attacks with only your legs
The combinations are just awesome now I can kick a wall and make a hole in it , break some rocks with my hand , and judo learned me to run on walls (not very long but still
So I can jump from a wall and kick someone with an uber powerful hit!
Judo and aikido ARE TEH BEEEST!