Whose fights do tu find the most entertaining?

I agree. shikamaru is the most interesting for me to watch.
I amor his jutsu and how he uses it ^-^

I would say the ones against the Akatsuki. Those really leave me at the edge of my seat. :D

Gaara

Itachi's.

Usually the smart people, like Kakashi, Shikamaru, Sasuke, Itachi when it happens. (Which is kinda rare.)
I get really bored of naruto fights when the solution is always "More shadow clones!" o "A bigger Rasengan" o "More shadow clones to make a bigger Rasengan"
Sasuke's fights with Danzo and Deidara are among my favoritos in the series. I like how Kakashi's meets magnitude with craftiness and diversity. Shikamaru's fights are brilliant.

Hinata's fights, because I'm obsessed with her. Yes, I know, lame reason.