Plastic Memories was short but cute, InuYasha, I've heard OnePiece is supposed to be good, as is Naruto, Hetalia cracked me up, and I recently started watching ERASED, an anime that just came out. And although it's not technically an anime, Avatar:The Last Airbender. Hope this helps!

Oh! Also watch Amnesia, it's really good

Blue exorcist, Magi, Angel Beats, Anohana, Inuyasha, Kaichou wa maid-sama