Im going for good old Stannis, yes he is hje guy you love to hate.
His armies are depleted he lost much support, but if his efforts to free the North works he good gain good support from the North, if he allies with Certain Greyjoys that are trapped on the mainland he could with luck start to get a fleet again. The big question is Dany problem, because Stannis has proved his unwillingness to back down from his heritage as king, but again Dany is actually a more rightfull ruler that he is....
BUt for now my money is on good old Stannis
