I've seen and loved: Hunter X Hunter*, Fullmetal Alchemist, Fate/stay night, Ghost in the Shell: Stand Alone Complex, Ranma 1/2, DBZ, Hellsing, Higurashi no Naku Koro ni and probably many more I'm forgetting.
I've seen bits and pieces of a dozens of other animes that I liked but never got around to watching fully, and I forget their names.
I've disliked very few animes. I've been sorely disappointed by Tenchi Muyo, not that it's bad but it just didn't live up to what I expected. Also the sexism is annoying.
*Source of my avatar, by the way.