Gundam Wing was one of my favorites back years ago.

Trigun is probably in my top 5 anime of all time

Cowboy Bebop is and probably always will be my favorite ever

Wolf's Rain, it's been years, but I loved it a lot when I watched it.

Yu Yu Hakusho was one I enjoyed, but I never watched the whole show, as they stopped airing it. I'd like to watch it all someday.

Blue Gender another one I remember enjoying, but it's been so long and my tastes have changed, so I don't know if I'd still like it.

Case Closed: Detective Conan really loved this show.

Big-O if The Batman Animated Series, Gundam, and Cowboy Bebop had a baby. I think I'd probably enjoy it more as an adult than I did as a teenager, if I were to rewatch it.