In my opinion I think Kisame and Zabuza could take this, not easily mind you, but they would win.
Zabuza is the weak link for team Kisame, but he can survive long enough to at least distract one of the others away from Kisame.
Let's say Kakashi fought Zabuza, so that leaves Darui attacking Kisame. What does Darui have? Long range attacks, with his water and lightning attacks and his KG. He also has a sword but getting in close with Samehada would be pretty stupid since Samehada can move on it's own, and if it touches Darui he will have some if not most of his chakra drained. However I think that a sword fight is the only way Darui has any chance against Kisame.
The long distance attacks work well for Kisame, who can either absorb them through Samehada, or he can use his shark water missile, which takes the chakra from an opposing attack and grows larger in proportion. So long distance attacks would spell certain death for Darui as his KG and black lightning would make the shark missile even more monstrous.
Kisame also usually creates lakes or a water dome to fight in, as he is purely a water user/ swordsmen. If he were to catch either Darui or Kakashi in the water dome, then it is almost a sure loss since they don't have the chakra that Bee does, and Kisame can drain chakra in his shark form.
As for Zabuza and Kakashi, I don't think I really need to write much on this, Kakashi kills him fairly easily. Kakashi beat him before and has had 3.5 years to train and become much better.
So in the end what it comes down to is if you think either Darui or Kakashi can take on Kisame one on one. I don't think one on one either stands a chance, and so I give this battle to Kisame and Zabuza, with Zabuza dying.