There are exceptions to almost every breed personality, and a lot has to do with the way you raise them as chicks. Chicks brooded by a human mama/papa often have different personalities than those brooded by a hen.
Well, I have a blue andalusian hen and she is great, I love her!! She is not mean in any way, she is somewhat shy at times but that's it!! And she is very pretty also!
I think it depends on the chicken itself, not the breed.