I prefer manga myself.

It's a matter of preference, but anyways I'll post some great manga I know:
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The World God Only Knows: I just read this a few days ago, but already it's driving me insane waiting for the next chapter. The storyline is beautiful; it may APPEAR cliched at first, but somehow they manage to twist things to completely break the cliche. The art is wonderful as well; adorable faces, great shading, appropriate use of facial expressions, it's just awesome.
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Vampire Knight: The art's cute, and the storyline's nice. It was released before Twilight and all that, so no 'Vampires Suck!' BS on me.
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Pokemon Special: Far better than the anime, IMO. Cute art, an ACTUAL STORY! Its characters are also far more interesting than the anime's characters.
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Aria: A companion to Aqua, it's a sort of Zen Novel; you're not going to find any real storyline or action there, but it's a relaxing book. The art is great too.
However, there are some anime I would recommend.
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Shakugan no Shana: Awesome art, though it does get funky at times, and great story.
And that's all the time I have now. I have some more, though.
