I agree with Dennis, my heart's with Rory, as I'm afraid Poulter, Westwood and Rose don't have a chance. I have no idea of how they've done recently though as I doubt I've watched any golf on TV since the Ryder and Solheim Cups.
But if I had to guess a winner, it'd most probably be Rahm.
As for the weather and the golf season starting, my home club usually opens for the weekend around April 15 and the first range around here opened last Friday but... We've got about 30 cm more snow over the past couple of days on top of the old 30 cm. We're probably realistically looking at at least two more weeks of winter.
Edit: Apologies for the size of the picture.