Naruto and Bleach are over-rated mainstream pieces of crap. 1st season of Naruto was good, same with Bleach, then they just went downhill at an alarming rate.
Naruto threw it's plot out of the window and became completely about Naruto's homo obsession with Sasuke, and the character development was terrible as well.
Bleach's arcs are ALL copies of the Soul Society arc (The last good arc in Bleach) and Bleach doesn't have a plot either, it also has the same character development problem, and lacks originality.
Good mangas: Fist of the North Star, DB/DBZ, JoJo's Bizarre Adventure, Rurouni Kenshin, Hajime no Ippo, Deadman Wonderland, Gamaran, Beelzebub, Trigun, Cowboy Bebop, Tengen Toppa Gurren Lagann (Anime only, still counts), Gundam, Death Note (Kind of over-rated but still good), Full Metal Alchemist, Hellsing, Gintama, HunterxHunter, Yu Yu Hakusho, Berserk, etc, etc.
Added (2011-04-23, 2:25 PM)
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Also, what's wrong with Pokemon?
The games are fantastic.
Viz you 