cat coat colors and personalities - Tuxedo cats?

I've always thought ginger boys had wonderful personalities - my vet and his wife agreed yesterday, and also said that torties and calicos can be rather offish - and of the 4 calico girls I have had one was friendly, two were offish, and one was a down right... ahh.... ***** (insert nasty word)

I've looked on the internet and found nothing to justify coat color means anything in personality in cats, but my experience, as well as people I know seems to say different.

Several of you have lovely Tuxedo cats.

What type of personality would you say your Tuxedo girls have? I had one as a little girl, but back then, they were outside country cats, and spay/neuter was not done like it is now, and she lived a very short life - I think only a couple years. I remember being able to do almost anything to her, and I must have only been 4 or 5.