hmm let me see..
1. Samurai Champloo
Amazing artwork and an even more amazing soundtrack. Historical Japan with an off-beat twist.
2. Fullmetal Alchemist
Very inspirational bitter-sweet anime.
3. Naruto
Although the most mainstream anime out there, I just have to pay my respect to Kishimoto.
I just loved Naruto up to episode 80.
4. Ebichu
Yes, Ebichu. I know, I know, there's absolutely no story to it, just hamster madness. But it's hilarious
5. FLCL
Again, madness all the way. genius artwork.
Special Commendation
Basilisk
Cowboy Bebop
Bleach
Abenobashi Mahou Shotengai
Crayon Shin-chan