My two fursonas, of course.
There's Lu, who's a typical brown and black wolf with the usual tawny eyes. She's pretty average, with white socks on her back paws, and big ears. Only unrealistic thing about her is her golden earrings - nothing too drastic. Basically what I'd look like, should I ever become a wolf. She's my physical fursona, and I really like her because she is 'me'.
Then there's Snarf, who's a full-on unrealistic pile of my favourite colours on a black background. Baby pink, blue, green. She's also female, as I am, but she rocks the Mohawk and some snazzy items. She's basically a badass, and she's my mental fursona - how my mind operates, my favourite things and what I wish I was. I like her because she gratifies dreams and things that I have over my mundane life. She's a canine form, too, but she's a daemon. This is basically like a spirit form of someone's personality, a shape-shifting creature. Snarf is Lu's daemon, but that's a really long and complex story that I had fun writing. Basically, it gives me licence to change her appearance about at will, as my preferences change.
Though those two are my favourite, I don't spend much time on them, preferring my active RP characters. c: