if it didn't have to be your age, I'd choose violetchi.
if it had to be your age, I'd wait next year when I'm a teen to choose. it would be either chamametchi or ichigotchi.
edit: Fireball602 I also think kuromametchi is cool. I just got him on my famitama along with makiko and uyotchi ( uyotchi looks really creepy when he walks up close to the screen =0)