I'd go with polymer for both finish and wheels if:
A) your car sits outside (not garaged)
B) you have a full extreme 4 seasons (Lots of snow in the winter time)
Polymers are suppose to last longer (and my tests show they do). I still prefer carnauba's though because I don't mind throwing another coat of wax on after 3 months, and you can apply another coat within a few hours after the first.
I waxed my wheels in Oct with a carnauba-based wax and by dec. the wax was basically gone.
A) your car sits outside (not garaged)
B) you have a full extreme 4 seasons (Lots of snow in the winter time)
Polymers are suppose to last longer (and my tests show they do). I still prefer carnauba's though because I don't mind throwing another coat of wax on after 3 months, and you can apply another coat within a few hours after the first.
I waxed my wheels in Oct with a carnauba-based wax and by dec. the wax was basically gone.