These are a few of the anime I've watched in order from favourite to least.

Monster
Death Note
Eureka Seven
Fullmetal Alchemist
Kimi Ga Nozomu Eien
Last Exile
Scrapped Princess
Macross Plus
Spirited Away
Gundam SeeD
Basilisk: The Kouga Ninja Scrolls
Noein
Princess Mononoke
Onegai Teacher
Neon Genesis Evangelion
Howl’s Moving Castle
Mahoromatic
Elfin Lied
Final Fantasy Unlimited
Haibane Renmei
FLCL