Outtawack, Naruto is good the way it is. We don't need you telling us every 3 seconds why it could suck.

Naruto is awesome the way it is...they have a perfect balance of serious and comic relief.

Sasuke
Kakashi
Zabuza
Haku
Gaara
Shino
Neji
Kankuro
Kabuto
Kurenai
Hokage (pre-death)
Dosu
Kisame
Itatchi

I'd say my list of serious characters is just as long as yours...and we've both left out several characters as well. (Kiba, Ino, Temari, etc.) If it was all serious or all Comedy, it wouldn't be Naruto as we know it. I hope tsunade is as funny as it seems she's gonna be...and I think up to now, the Creators of Naruto have not let us down...lets trust them to make Tsunade as cool as can be.