McCain or Giuliani?

Yesterday, I suggested that John McCain will be the big winner if the Democrats do well in November and Lieberman handily defeats Lamont. Reliapundit, on the other hand, views Rudy Giuliani as the real potential winner, at least when it comes to a Lieberman victory.
I’m not sure that, in the complete scenario I described, Giuliani comes out better off than McCain, but I should have included Rudy among the big winners.