I was about to give this to T-1000, immediately. I would've said something like "blah, blah, blah, Black Panther can't do enough damage to T-1000 to keep him down, he'll regenerate from everything," but then I actually got to thinking. What are Black Panther's claws made out of? Antarctic Vibranium. The thing they literally tell you is anti-metal. It will definitely stop the T-1000 from regenerating if he ever managed to land a hit on him.
But I digress. The way Antarctic Vibranium works is by "emanating vibrations which causes the atomic and molecular bonds in nearby metals of other kinds to weaken, which results in liquefaction of nearby solid metals." The only thing that's stopping me from voting for Black Panther right now is the fact that the explanation of for this version of Vibranium seems to do the exact same thing that T-1000 does on a regular basis, so until I get a consensus on this, I'll abstain from voting. Very good and interesting fight.