Always been picky about what anime I watch. Haven't watched any anime in the past few years, though, my life has been hectic the past few years. I guess I don't like 'anime-esque' anime. Ones with an endless parade of episodes and filler, or over-the-top fighting or magic.
Highly recommend Jin-Roh.
Canaan was a somewhat guilty pleasure.
Anything by Miyazaki.
Black Lagoon was hit-or-miss, but when it hit, it was damn good.
Ghost in the Shell - preferring the movie over SAC, but both were good.
Cowboy Bebop naturally, and, on a lighter note, Space Dandy.
Pop Team Epic is hilarious.
Jojo's Bizarre Adventure I like despite its other qualities. It's an absolute fever dream that makes no apologies for itself, and I respect the hell out of that.
I wonder if there are any that I've liked but forgotten? My memory is like a sieve...