Two most dominant factions

Even without project Roman influencing each booking decision of the WWE, a showdown between New Day and the Shield makes sense on almost every level.
They're the two most dominant factions in WWE's recent history, without a doubt.
They're both incredibly over with the WWE Universe.
All six of them are good workers, meaning that the match is likely to yield fireworks.
And eating a loss doesn't really affect New Day's legitimacy because they're goofy, easily likeable and hold the all-time WWE record for longest ever Tag Team reign as well.
If I can fault anything in this scenario at all, it's that there hasn't been a personal rivalry between the factions that has eventually led to this match.
But hey, I'm just thankful that there's a good chance of it happening at Survivor Series in the first place.