This year might be the year when the squishes get their comeuppance, and a real conservative (TM) wins. Right now, it looks to me as though Trump will win. His support had a few small dips, but then he surged back stronger than before. Cruz is running a fairly close second, though he's less popular outside the Bible Belt.
None of the establishment candidates (Bush, Rubio, Christie, or Kasich) is even a close third. For one of them to win, he would have to surge pretty quickly, and time is running out. Iowa is 2/1, New Hampshire is 2/9, South Carolina is 2/20, and Nevada is 2/23. Then a glut of primaries on Super Tuesday, 3/1.
But while writing this, perhaps I'm changing my mind. There may be time even after the March 1 primaries to change the overall direction. However, in the recent past, the direction was set early, before Super Tuesday. Maybe this year the contestants will be slugging it out all through March and April. That would certainly be exciting.
But if the GOP follows the usual pattern, we'll know the leader and the eventual winner by the end of February. If that's true this time, it will be one of the crazies, either Trump or Cruz. God help us.
Update 3/9/16. We still don't know who the nominee will be, but the establishment candidate are bringing up the rear. The crazies are the leaders. Interesting times.