About anime, cant say I watch much as I prefer Manga myself. If I can recommend some:
-Dai no Daibouken, based on DQ. This series is pretty much one of the best classic Shonen overall. It kinda subverts the issues from Dragon Ball where some of the characters become dead weight later on (with some exceptions) due to being based on the concept of an RPG party.
-Gintama, from my previous avatar. Pretty funny series, but in all honesty the serious moments it has leave a lot of other shonen series looking dumb. Biggest issue is the huge amount of other series and games references.
-Grand Blue, comedy series about a guy joining a drinking diving club and the life around college. There's fanservice for guys and girls, and seriously remember, this is a diving manga.
-Kyou Kara Ore Wa, another comedy manga about 2 freshman attempting to become delinquents at high-school. Last third is a bit more shonenish but still cool.
-PLUTO, a manga based on Astroboy but with darker tone. It takes one of the arcs from the series and transforms it into a murder mystery series. (I heavily recommend Monster and 20th Century Boys from the same Author)
-Full Metal Alchemist, enough said. It's pretty much one of the best shounens, it has a better pacing than the anime just because the firs chapters weren't as rushed