I have cream, and they still look like new, although I don't have a lot of miles (6K). I wear jeans about 99% of the time and never see any dye transfer. My prior S was Tan leather and I never got any dye transfer on that car either. Did almost zero care for the seats in either car.
On the tires, Love the look of the 21" tires, but went for comfort and practicality with the 19" tires, which still look good. Others can chime in, but I don't think you can buy 21" winter tires, so you may need two sets of rims if you drive in winter conditions.