There are hundreds of Martial Arts all over the world. The most well-known ones are Japanese Martial Arts such as Aikido, Judo, Karate, Jujitsu, Kendo, Okinawan Kobudo, Bojutsu and many more. All of them are very good. It comes down to the skills and personality of the individual instructor, and the years of experience in their particular martial art that should matter to you.

Certain body types are more suited to some martial arts than others, however. People with hyper-flexibility may have issues with Jujitsu for example.