I think bengals are really beautiful. My cat is a bengal mix, and only really has the patterns on her head, but her coloring is so pretty! I did a lot of reading on bengals when I first adopted her, and noticed she has a lot of the mentioned bengal personality traits: She loves to play rough, she's very talkative, and she drinks a ton of water. Sometimes she reminds me of a dog, at least in the way that she's always trying to coerce people into playing with her.
I love Siamese cats as well, because they look so elegant and have great personalities -- always really talkative. My mom's roommate has one, and he is so sweet, with the prettiest light blue eyes. I also think Calico cats are really adorable, though I've never known one in person and I'm not sure about their personality types...