The three TOP manga? That's a very hard decision, but here are my choices:
1. Death Note. Why? Because I love mystery strories, and this is even better than that. I love the creative ideas that comes with this manga.
2. Loveless. Why? Because it's so cute! I love how the creator thought of the cat ears and tail thing, and the plot is so interesting that once you get into it, you can't stop reading! And the art is good too!
3. Naruto. Even if this series has yet to be completed, I still love it so far. It's an idea hardly anyone has ever thought of, and the characters are so unique! It may have multiple plot lines, but they're all so excellent! ^^