Big Rob is a Rafa favourite that's for sure. He was obviously injured for most of the last season which was a shame but he seems to be that loud, outspoken character to jeer the boys up and jump up like a cat when the team goes 1-0 up or something. Like a Pepe Reina.
Imo Darlow is better and should be number 1 but it seems he's off and will be replaced. I think the plan is to have Elliot as number 2 with a new arrival in the net (or the other way round) but with how slow the transfers are being made I wouldn't be surprised if it's Elliot #1 and Darlow #2 next year.
tl;dr - if we sign a keeper, Elliot is #2. If not, he's more than likely #1.
Oh and I think all of this depends on getting rid of Krul. Who clearly isn't wanted. Fml it's a bit messy at NUFC.