There is currently a poll at TVGuide.com where fans can choose which TV president they would vote for: Josiah Bartlet from "The West Wing", Mackenzie Allen from "Commander in Chief", the President from "24".
From New York Magazine:
"Palmer definitely surpassed Martin Sheen as everyone’s fantasy president.
I actually won a USA Today poll. Which included the real president. But that didn’t surprise me as much as beating out Martin Sheen. I guess I’m the better crisis president."