2012 Mustang GT Premium or 2012 Camaro SS?
The Mustang is the better handling of the two, offers better driver seating and fewer blind spots.
The only advantage the Camaro has is that when you are sitting in it, you don't have to look at it!
So it depends on if you are driving to be seen (get the Camaro) or to see (then get the Mustang).
The Mustangs fit and finish is better, along with the handling. It may not be the fastest through the quarter mile, but it is through a road course.