The Shield vs The Wyatt Family.
It wouldn't make sense but whatever, I love both so to see them physically interact would be exciting to me personally. The match would be fine, I'm sure, but it's mainly this one segment I'm thinking of that I'd love to see. The segment would basically be The Shield cutting a promo when the Wyatt Family attacks them and lays them out. The reason it would be awesome is because both groups debuted in similar ways, with them targeting and attacking random people. The Shield have done this more excessively and for longer though, which is what is karmic about them being the victim of their own style of gang attack here.
How many people have been out in the ring just doing their own thing only to be surrounded, outnumbered and attacked by The Shield? Several. So, imagine the shoe is on the other foot here - The Shield are out in the ring doing their thing and cutting a promo about something and all of a sudden, the lights go out and the entrance for the Wyatt Family begins. And out they come, with Wyatt carrying the lantern while the commentators, who remain mostly silent, wonder what is about to happen. And what follows is what really shows the difference between the two groups, which is that while The Shield use brute force to put people down, the Wyatt Family will use their brains as well to outmaneuver someone.
So here, instead of just going straight for The Shield in a big brawl (no way can Harper and Rowan take on three guys by themselves, and I don't want Wyatt to join in and make it a six man brawl, I prefer him to rock back and forth in his chair as usual), they use the darkness to their advantage and when the lights come back on, Roman Reigns, the largest member of the group, has already been attacked and is lying first face on the mat (or is just wrenching in pain on the mat but not knocked out cold just yet, doesn't matter) and Harper and Rowan are standing there waiting for Ambrose and Rollins to turn around. They get into a brawl, which I think Harper and Rowan could win convincingly against just those two. Maybe Reigns starts to stumble back to his feet and eats a nasty big boot from Harper, simply because a big guy hitting another big guy with a move that big guys do best is too awesome to pass up.
Wyatt then enters the ring and starts cutting a promo. Whatever gospel he is preaching that night, he cuts into it three times, which is for each time he pauses to attack one of the wounded members of The Shield to give them the kiss of death and then hit the Sister Abigail finisher (this is seriously what it's called?) on each of them, one at a time. Then Wyatt drops the mic and falls to his knees and does his pose with his arms stretched out with The Shield laid out all over the ring. The commentators don't know what to make of it because The Shield have never been handled in this fashion.
Why The Wyatt Family would attack The Shield, I have no idea, but the segment would still be good.