Which martial arts style is best? -

Take care of your body. It's the only place you have to live

Which martial arts style is best?

There is no one right answer to this question. The reality is that regardless of what martial arts style you practice; you will get out of it only what you are willing to put into it. Many martial arts styles can get you into great physical shape as well as teach you self defense if learned properly. Only you can decide which style is best suited to you.  In addition to considering the style, it is equally important to have a qualified teacher.