My vote is for Abrams-verse Kirk played by Chris Pine. Compared to all those amateurishly choreographed fights Shatner's Kirk got into back in the '60's, Pine's Kirk seems to take a lot more physical punishment in these last two movies. Another factor is that Shatner-Kirk's decisions to go against orders were usually well thought out, while Pine-Kirk has more of a spur of the moment, "Ah, screw it mentality".