Anime:

Gintama - Most hilarious anime you will ever watch... With some good fights aswell.
Full Metal Alchemist - Amazing story line.
Death Note
Desert Punk
Samurai Champloo
HunterXHunter
Tenjo Tenge

Manga

Naruto,Bleach, One Piece, Hitman Reborn, Toriko, Fairy Tail, BeelzeBub, Claymore, Hajime No Ippo, The Breaker/ The Breaker: New Waves, Veritas, Trace, Noblesse, Zippy Ziggy, Tower Of God


... All i can think of atm