Most likely one of the reasons that the Bush camp agreed to go with 3 instead of 2 debates was just the point you made.
Kerry is a walking talking gaffe making machine.
There is not one week that goes by where Kerry doesn't sticks his foot in his mouth.
The RNC could (will) make several commercials from Kerry's performance.
On the other hand, W was disciplined and didn't get off message, didn't make any mistakes, didn't give the dems anything to use against him.
Let them think they won the debate. Let them enjoy their little delusion. Karl Rove is a genius!