Okay to be perfectly honest I would date all of the Hetalia characters (except for the female ones, and France, because, I dont know, he's just too open, I guess) but one character I would date out of all of them is

........ *drum roll*.........

Spain!

I'd date him because he's always happy and really good looking. I love his generic genes, and his green eyes are beautiful, his personality is cheerful, and his favorite food is the tomato. He also has some of my heritage - Spanish.

Spain just fascinates me more than any character.

And if I had a second choice it would be Japan.

CC_Green~