Vortex... First off let me assure you that dragonball Z is not real. In fact, there are no martial arts at all in Dragonball Z, unless you count the ki attacks. Everything else is based on power level and speed, since everything is a blur no matter what you learned in school. Oh, and those ki attacks aren't real either. By DBZ standards Jet Li wouldn't probably be around 6 or 7 PL, but taking into account that dragonball Z isn't real... let's just leave it at that.
Jet li as Vegeta would be interesting to watch...