I was just about to let go of Muguruza, then she goes and has a good year. Maddening in a whole new way. On the men's side, Gulbis. I'm surprised he's still plugging away, going out in R1 of Challengers or Tour qualies. He didn't have a tour-level main-draw win this year.
I came around on Radwanska and Wozniacki eventually, once I appreciated good defense, so the reverse effect.