What sort of martial arts do you practice in and why? Judo? Karate?

Educating yourself in self defence seems very useful especially if you live in parts of a country that might be rough.

I'd like to get into it myself but I can't hear well, I can lip read however. Did some boxing when I was very young but it was only practice on training bags : )

Kung Fu students and masters alike, let me know your wisdom!