I've already gone through the reasons why Brock Lesnar should retire The Undertaker at Hell in a Cell, but regardless of whether or not that ends up happening, he's definitely leaving this PPV as the victor. Lesnar's dominance needs to be re-established, and having him lose here after being cheated out of a victory at SummerSlam would be a huge mistake, as it would further damage The Beast's mystique as the WWE's unstoppable monster (which he initially gained after conquering The Streak). The Undertaker has such a sporadic presence on WWE programming that a victory here for him would accomplish nothing. Like it or not, The Streak is dead, and the Phenom beating Lesnar inside this demonic structure isn't going to change that. Sure, he'll end their rivalry as the overall victor, but Brock will still be the one behind the one in twenty one and one. A victory for Lesnar on the other hand will put him back on top of the food chain, making the prospect of whoever dares to step up as his next opponent all the more exciting. Plus, if the reaction to Lesnar walking away from the Deadman on this past Monday's Raw is any indication, a heel turn could be on the cards, and what better way to facilitate that than destroying a fan-favourite?