Smilin' Norm Coleman backs a localized escalation for 1 or 2 more Friedman units (listen ~3:00 in to the interview). That's 6 to 12 months and a few thousand casualties for folks outside of Washington, D.C.
I do see a real conflict among those who intend to vote to confirm General Petraeus and to also vote for a resolution opposing escalation. If you believe as a Senator that you should defer to the President's choice of leadership in Iraq, you also have to defer to that leadership's choice of tactics. In other words, if you confirm Petraeus -- who wants to escalate the war, indeed, thinks its the only way to win in Iraq -- then you more or less have to go along with Petraeus's plan to win the war:
[Petraeus] said he would not be able to carry out his assignment as top U.S. commander successfully without the additional troops.