I was listening to the same segment, since I have to wait an hour longer to catch Doug & Wolf... stupid DST.
I think both are similar, namely in both have more detractors than I think is fair.
Given Carson is four years into our program, vs Romo would be starting from scratch... Carson gives us a much better chance to win this season, so I'd call him the better QB for us because of it.
I think they are both of a similar age, and frankly, I still cringe every time Carson takes a hit, even though his last knee injury was non-contact, so I don't see any benefit of bringing in Romo.
Go Cards!!!