Not to sound like a complete pedant, but you have to compare experience between Obama and McCain, you must adjust for opportunity, that is, age.

And we should surely count the time Obama served in his state legislature. Doing all that (I did a more extensive calculation at my site) still gives McCain more than twice as much experience as Obama.

However, McCain never had the opportunity that Obama had when he had the chance to learn from Ayers how to be promoted to a distinguished professor U Chicago after calling for the killing of his fellow Americans. Surely, that task takes extraordinary political skills.