I had an all black American short hair once. He was hard to take a picture of! He looked just like some black blob. I don't know if I have a favorite really, but I definitely like ones with different colors over plain colored ones...but really, they are all adorable! I do like Abyssinian fur though!
I like the way abyssinians look (babies are STINKING ADORABLE), but I think I prefer plain ol' shorthairs because I don't have to worry about petting their fur in the wrong direction. Favorite color is cream/tan, but I also like random looking tricolors.
I'm new to piggies and only have an American and a Texel. I love them both, but looks-wise the Texel wins hands down. 99% of the time he looks adorable and/or hilarious. I'd love to own a tricolor Aby some day.
Hmmmm... Well, I love all breeds and colors, but I think my favorites would be Abby and Shorthaired, like my boys, though I do adore Peruvians (Never had one) and Himalayans. Colors... Well, I really like Black, and brownish.