Most of them are unwatchable unless you're some emo fag.
Even if they took the story from a good Japanese comic book, they stretch the story out into seasons and drag out the story so it's mad slow. Insert random events that are not necessary.
Even Dragonball and Slam Dunk, couple of classic mangas, became retarded when they were translated into anime.
Exceptions are actual feature movies like Ninja Scrolls, Wicked City, Akira, Street Fighter 2, Princess Monoko or whatever.
Anyway, classic animes had much cooler character and themes than now.. Now it's full of fairies and emos.