V2D I read it. I agree with everything except saying Jin is more skilled because he has knowledge of 3 styles of martial arts. That ain't skill. And besides Jin "Unlearned" as stupid as it sounds the Mishima Ryu style. Master Chief on the other hand has military CQB training which, in case some of you are unaware of, involves taking people down with the least of efforts, effectiveness and speed.
However i give Jin the nod because he has spent his entire in-game life fighting H2H. With that said Master Chief will make it difficult for Jin.
Durability goes to the Chief hands down. Regeneration goes to Jin, BUT if he loses consciousness it's a loss for Jin.
Strength/Power I'd say they're dead even. Master Chief can punch through iron/steel/whatever the **** metal it was and Jin can most likely tear through Jacks the same way his predecessors do.
Running speed goes to Chief, but Jin should be faster in combat. However he will not be dwarfing the Chief.
It's very even IMO. Jin given the nod because well...it's ****ing Jin Kazama and he kicks ass.