Don't judge me pls. Watch One Piece, Naruto, Naruto Shippuden, Bleach and Fairy Tail. These are all pretty popular and are quite long series. I'm watching Law of Ueki and that seems pretty good. Uh InuYusha (I think thats how you spell it) Steins;Gate and FMA: B/Original FMA are all good watches too.
Thinking is the Enemy of Creativity. It's Self-Conscious, & Anything Self-Conscious is Lousy.
FMA, D.N. Angle, Inyuasha, Sword Art Online (this one is short and pretty good), @II-SKOTTIE-II OHHH OMGOMG OMGOMGOMG WATCH THIS: Eden of the East (I almost forgot about this one it randomly popped in my head), Clannad, FMA: Brotherhood (Watch the original first), Fruits Basket, Prince of Tennis, Attack on Titan, Bleach, Mobile Gundam Suit. I have more.... Just don't want to Anime suggest rape you... lol