Sparkling in the sunlight.

Wait, no, those aren't really vampires.

About the only things I can think of as actual advantages are the potentially longer life, and the ability to heal from many things. Geez, that answer is a little too "Dwight Shrute" for even me.

Honestly, I'd miss eating and daylight too much to make those things worth it.

If I had to choose a "flavor" of vampire, though, I think I'd prefer the ones from "True Blood". They just seem to be a good balance of disadvantage with ability, and the availability of a blood substitute make that universe a little more appealing.

I used to play "Vampire: The Masquerade" and I tended towards Malkavian and Gangrel characters, but that was role-playing, not an actual long-term life choice.