Should be interesting. Three superstars who have in common that they are loners by nature, but never shy away from a scrap. You have Sheamus, the fighting babyface; Orton, the much-popped-for tweener of the ages; and the Big Show, the big nasty bastard if it were allowed to be said so on PG television.
All three men have histories with one another: Orton and Sheamus feuded over the WWE title in 2010, which culminated in a Hell in a Cell match; Sheamus and Show of course put on a surprisingly good rivalry late last year; and while Show and Orton have never had any major beef, they have met each other in the ring various times over the years on Raws and Smackdowns - it's hard to believe that Orton has been on the roster for over a decade now.
Of course, continuity is not a word in WWE's dictionary, but three superstars forming an uneasy alliance to collectively confront the Shield seems to be the way to go with this one.
I see the Shield carrying on with their streak of winning high-profile matches; it's still too early to pull the reigns in (LOL) on them. Moreover, neither Orton, Sheamus, or Show would be hurt from the loss, since their downfall will no doubt be their own internal squabbling.
Some fans are clamouring for a heel turn from Orton during this event, myself included to an extent, however doing it there and then may have the accidental by-product of making Show out to be a face. Then again, I don't see why Orton would align himself with the Shield as stables aren't really his bag anymore.
Ultimately, I think the weak foundations of the team will give the Shield a big enough advantage to pick up the win on the big stage, and could be the starting point for a Sheamus/Orton feud, who would undoubtedly put on a good match at the Extreme Rules PPV if given the opportunity.
My only wish is that it be some sort of gimmick match. A tag team tables match would be ideal, perhaps with an elimination twist, since right now Wrestlemania is devoid of a gimmick match, and getting some wood would grant us some memorable spots, especially with that wicked triple powerbomb.