Kabuto is a very skilled ninja who has been shown to be able to fight with members of the Sannin and Kakashi. Of course when he first met Dosu he lost it was due to circumstances. In a real fight he could easily beat Dosu. Dosu just wouldn’t stand a chance against a ninja as strong as Kabuto. Kabuto wins.
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Although Kabuto has faced off against stronger enemies, and has an extensive knowledge of ninjutsu, he’s never faced off against sound techniques, so he’s at a slight disadvantage. I’d say it’s a fair match for the most part. In the end I think Kabuto would win nonetheless.
Well he actually has some sound powers of his own currently. Plus he may not have fought them much, but he knows about pretty much all ninjutsu thanks to Orochimaru. Plus his skills are extremely advanced right now and there are few shinobi he cannot defeat. Glad you agree he would win 🙂