DBZ was really fun when I was 14... but now it's something to play drinking games to:
"Everytime someone goes AHHHHHHHHH!!! you take a shot, okies!"
Was quite possibly my best idea EVER!
Didn't cost much to get slaughtered that night...
Anyway, as I've grown older, though I haven't really grown up per say, I kind of prefer anime and manga with either an interesting storey like The Embalmer, Angel Sanctuary, Doll, or Beautiful People (I have a thing for the manga of Mitsukazumi Hara)
Or things with really bitching aesthetics like Alichino or Bizenghast
Or there's things that hit everything like Death Note, Paradise Kiss, Chobits, Wallflower, Legal Drug...
They don't all have to be serious... light hearted stuff is good too, I love Shojo manga... don't ask why, it appeals to my sensitive side.
But, that's all just hitting upon the manga side of things...
Anime I find is always best for either really nice sensitive stories like The Girl Who Lept Through Time, or Voices From a Distant Star; Shojo of course like Chobits, Shuffle, and the like...
But anime is best for the really bitching violent shonen things:
Akira, ghost in the shell, ninja scroll, vampire hunter d bloodlust, hellsing, gungrave, trigun, neon genesis evangelion, cowboy beebop, samurai champloo, afro samurai, escaflowne, etc etc etc...
Of course then there's the really freaky deaky shizzle like studio Gibli, which I never used to like, but have really gotten into recently... Or Memories, which is by the guy that did ghost in the shell I think, and it's just WTF all the way through... Cromartie High School is the perfect example of the funny freaky stuff, it is the biggest mind-f**k you'll ever have while p***ing your pants with laughter...
It all just depends on what you're into or what you want out of it, like with films or books or games or anything in general really...
Think of what you like and find something that would be fitting to your tastes, if you end up not liking it then no big deal, but if you do like it then it's a gateway to possibly getting into more things...
Anime is just the medium, a specific stylised cartoon that is aesthetically pleasing, or atleast I think so...
It's kind of based on fashion illustration drawings and american cartoons, which is why it looks so odd and unhuman...
Anyway, hope it's been insightful... or even answered the question, I've forgotten what I was getting at completely, so I shall end here...
Goodnight all...