I thought that WWE Creative made a huge misstep in booking Big Show/Orton at Survivor Series. A title match between the two is inevitable, but the ongoing storyline building up to that confrontation really hasn't been fleshed out. Thus far, Big Show's antagonists have been Triple H and Stephanie McMahon. Any interaction that the two have had up to this point has only been when the Big Show attacked Orton to get to Triple H and Stephanie.
It also leaves Kane, who they have made a major plot point of going over to The Authority, acting only as spoiler. But with the presence of The Shield, who have largely been relegated to spoiler status after losing the tag titles, that seems superfluous.
I still say that a better way to go would have been to have Big Show, leading a Survivor Series team, win his employment back at the PPV of the same name with Orton acting as the opposing team captain and thus not defending the title (thus also allowing them to really build a Sandow/Cena/Del Rio feud and give back a little distinction to the World Heavyweight Title by making it the biggest title defended at the upcoming event). After pinning Orton to win the Survivor Series match, book Big Show in a one-on-one with Kane in a rule-less match (use any of the ten thousand names they have for such matches these days) with a shot at Orton being on the line (Orton defends against a handpicked challenger, thus underscoring that Orton can't win without the deck being stacked in his favor). Then have Big Show challenge at Royal Rumble.
That gives nearly three months of build up and a chance to really give the confrontation between the two men some actual character. As it stands right now, it feels less like he wants the title and more like he just wants to screw Triple H and Stephanie, which in turn, I think, devalues the title.