Alex.J
[14] Master
If you can INSTANTLY appear somewhere then you are faster than something that takes time to travel. Kind of like how Superman loses instantly to kryptonite.
Teleporting being faster is arguable. Since he has to do the technique, dissapear, then reappear. Also when he's not teleporting, how fast is he? This is important since if he's much slower after teleporting. Teleporting becomes a weak as fuck gimmick not worth mentioning. The fact that most characters in DBZ never bother learning it, kind of shows it's not really a fighting technique anyways and more of a gimmick.