Oh there are tons of myths. The most popular one I've heard is "red heads" (chestnuts that is) are crazy. Or the "chestnut mare" syndrome, that indicates chestnut mares are hot and spirited, and more unpredictable than most horses.
Well, none of them are really true. That being said, funny enough all the chestnut mares I have known have been a little kooky! And I've known some nutty chestnuts, but I have known just as many calm chestnuts.
My boy is black (okay, he's bleached to a yucky orange right now, but he IS naturally black), and he's never licked. He licks his lips when he thinks I have a snack for him though! ;)
Never heard this, but the red roan I knew as a child actually had a fairly light winter coat. The roaning may make it appear to be fuzzier though.
I've heard it, but I don't think it's true. I've known a lot of sloooow, lazy sorrels.
I've never heard that. Or course, "white" is technically not a real color, unless you want to count dominant white, which is the only "true" white horse. Grays though...all I've known have backed fine, and the one I knew who was in training learned pretty easy.
Another one I just remembered hearing was the black horses are super-spirited. I guess that's a stigma that comes from stuff like The Black Stallion and movies with "dreamy" black horses. I've only known a couple of black horses in my life. One I didn't know that well, but she seemed to be fairly mellow in temperament, not super hot headed. And my Jack is definitely not a deadhead, but I would not call him hot or super-spirited. I think he's got a lot of personality and he's somewhat pushy, but he's very motivated. I think he just gets more studly (although he's a gelding) rather than spirited or hot. Or am I just making excuses for him? ;)
I've heard Appaloosas are sweet and that Cremellos/Perlinos are hard to handle.