Scrapped Princess and The Vision of Escaflowne are my competing top two. The list:
1. Scrappe Princess and The Vision of Escaflwone. (because they're awesome and both have good intro songs)
2. Azumanga Daiou (is there anything funnier?)
3. Samurai Champloo (Some really cool characters and is funny at points)
There are my fav animes, I haven't seen much but I'm going to see more, much more...