On current form it would be Walton but I wouldn't class either as championship standard at the moment
Hope they both turn out great keepers, but I've barely seen Walton put a foot wrong while Collins makes errors that lead to goals almost every game.
I quite like Collins but he’s made a few errors already this season and I’m still yet to see Walton make a costly mistake since he’s come in to the side. Got to be Walton.