Asuma was a character I was fond of in part 1, but, and it's the same deal with Kurenai, Kishi didn't bother to go in depth with his abilities.
I think he was hyped to be the best in Konoha in CQC, but that's BS of the highest order when you had Guy, Kakashi, Hiashi, Hiruzen w/ Enma, and arguably Neji and Rock Lee who were clearly better than him in that aspect.
With that said, I think Kisame wins this, unless you restrict the Samehada's chakra absorption.