Here's my top 10, if you're interested. If you'd like an explaination on any, I will provide one for you!
10. Sword Art Online
9. Cowboy Bepop
8. Bleach
7. Tengen Toppa Gurren Lagann
6. Monster
5. Samurai Champloo
4. Elfen Lied
3. Death Note
2. Code Geass
1. One Piece