Yes, of course. Sports championships should always be decided on the field!
"Rocco Dantona" makes the argument that it would decrease interest in College football. I disagree.
I believe that a playoff system built into the current AP/USA Today polling & Bowl system would increase interest and lend credibility to the Div. I National Championship. A simple plus one or two playoff system would be far more credible than the system they have now.
The current system is severely biased towards the "Automatic Qualifier" teams and allows very little possibility for "Non-Automatic" Qualifier teams to play their way into the championship game.
For more on the Bias of the BCS, see my article at http://hubpages.com/sports/The-BCS-Choosing-a-Myth...