Daily Lives of Highschool Boys is a 12-episode comedy. Very funny and mostly random nonsense. lol (Only subbed)
The Melancholy of Haruhi Suzumiya is 28 episodes. Classic characters, great visuals and music, and another very funny show with only a few moments of intense drama. (Works either way)
Space Dandy is 26 episodes of complete and utter stupidity. It's all insanely funny, though. lol (Works either way)
FLCL is only 6 episodes of the above, though much much better. (Dub highly recommended)
Eden of the East is 11 episodes and 2 films. Short and sweet, edge-of-your-seat thriller with awesome visuals and traces of romance. (Dub recommended)
Itazura na Kiss is 25 episodes. A little aged visually, but it's probably the most satisfying romance I've seen this side of Clannad, which I would recommend if it wasn't also the saddest anime I've seen. lol (Only subbed)
Kill la Kill is 25 episodes and is an insanely good action-comedy. Definitely lived up to its hype for me. (Works both ways, but I really enjoyed the dub)
Madoka Magica is 13 episodes and one of the most feel-good anime I've seen thus far. *wink wink*
Ouran Highschool Host Club is 26 episodes and another very funny show. (Works both ways)
And I'll just throw in
Cowboy Bebop cause it's an absolute must-watch, as is the dub.
