Best for Self-Defense? Short of a firearm, a can of pepper spray backed up with a folding baton. After you practice CQC tactics, start doing 2 mile runs for time, because you will want to know how to get the hell out of the situation. In fact, if you drive, install a remote starter and power locks. That'll help you get out of there even faster.
Aside from that, learn how to actively avoid bad situations. Common sense goes a long way in prolonging one's life.
It doesn't matter if you agree or disagree
... As long as I don't bore you and I spark a moment of thought, my goal is achieved
Queng leon queng tigre ecu tacacut, queca pa? - Pampangan Mandarigma Motto