I have lots of friends who like anime and constantly recommend them to me claiming that "this one is different, I think you would really like it." So far the only one I've liked is Samurai Champloo. It's short, every episode has a coherent beginning, middle, and end, fight scenes are fast paced and don't have any of that "he's dead! now he's alive! He's too strong and I can't even hurt him! Now for some reason I'm able to do some super attack that can kill him! Let's talk about every attack I do for 15 minutes apiece so that a short fight can span 4 episodes!" stuff. The voice acting is good, which is EXTREMELY rare for anime, Mugen is a badass character, and it doesn't fall victim any majorly deal breaking anime cliches. So NOW I would say Samurai Champloo. Dragonball Z used to be my favorite show as a kid though.