#1 Braun Strowman wins
I know what you're thinking, this could actually happen. Well, it could but it's just as likely as every other wild prediction on this list. Braun Strowman has cashed his contract in, in advance, and the former NXT star has Mick Foley to call the shots inside the cell.
WWE has given themselves a lot of options here if Braun loses, to state that Roman Reigns had a lot of time to prepare or that Mick Foley was against him etc. Roman is expected to go on a lengthy run with the Universal Championship, which he should after how many attempts it took him to win it, but that doesn't mean it will be easy.
This is definitely going to be a brutal match for both men, but when push comes to shove, it's obvious that there was only ever going to be one winner.