Bee Vs Itachi....wow.
Tobi gave more valid points, I felt Prince didn't counter them much. Like Tsukuyomi was hardly mentioned, you could have made a decent case that Bee would have broken it. U didn't utilize the benefits of V2, which provides a full body shield for Katon and Amaterasu, along with speed boost to dodge Totsuka.
Tobi wins in IMO.