I'm sure it would be one helluva fight.
V would probably throw some knives at Oz, who would dodge them, going on the defensive for quite a bit. Then V would try melee combat with a pair of his knives. Both would get in a good amount of acrobatic manouvers and skilled martial arts blows. Then I can just see something like this happening:
V lands a blow that would kill any normal man. Oz would collapse, and then stager to his feet. V would be astonished, but Oz would give a speech on how he came prepared with a special material or device that protects him from that sort of attack. Then they would fight some more, V would get Oz in a neck-snapper lock, Oz would sweep him, and then there would be some more talk about defeat and prep. Oz would leave, leaving V defeated but by no means dead.
I dunno, it's just an idea. I can see it happening.