What would be the best martial art for me, a beginner?

In theory there is little difference between aims of the martial arts. Personally I don't like karate because it takes so many years to become practical, otherwise most of the others are fine. Judo, Jujitsu, Taekwondo, Aikido, and Hapkido are all good. Your choice might come down to a preference for a particular club, instructor, location or pricing.