Paul Ryan would be a great asset but he is even better for the house of Reps. He's about the smartest guy there and it would tragic to take away from that...If NoMoBama wins in 2012 Ryan would be my 1st and only choice in 2016 perhaps even if Romney wins and BOMBS.
If Romney wins in Nov....there will be 16 Republicans
in 2016 primary and 16 Democrat in the primary. All candidates will be new blood.
All of the older candidates will have let their hair grown out and grown tired,they are in jail,have a divorce or affair scandal attached to their name,or simply to "shop worn" for voters to consider and backers to bet money on.