So I watched many animes so far and here is my list
best anime - cowboy bebop
favorite anime - Gurren Lagann
The difficult part is putting them into a list, so I'll say that those two are tied for the #1 spot.
2. Outlaw Star
Actually, screw the list. I'm going to jot down animes that really stick to my mind.
Hellsing, GunXsword, Trigun, Higurashi, Shigurui, K-on, Love Hina, ...??..?
Hmm, not as many as I thought. Oh well! =)