1. Brock Lesnar
Over the past year or so, Brock Lesnar conquered The Undertaker's Streak, decimated John Cena like no one ever has before, and main evented WrestleMania. Why then isn't he on the cover of WWE 2K16? Unexpectedly, Lesnar has also become a babyface thanks to his feud with Seth Rollins, and with his merchandise sales now more than likely going through the roof, taking this game to Suplex City would have been a smart business decision. Of course, the choice of who should star on the cover may have been made around the time Brock's WWE future was in doubt, but that was really only a very short space of time. As a result, that doesn't seem very likely, and it's probably Brock's lack of interest in interviews and various other publicity events which cost him the cover. Whoever ends up taking the spot is usually expected to help promote the game, but if he's willing to decimate a car on Raw, would Brock have not also been up for shooting a one minute promo? Whatever the answer, a year like the one Brock has had deserves to be celebrated, and this would have arguably been the perfect way to do that.