I'm glad to see Scott is getting some credit on this forum. Just watching him in City vs. Country reminded me how good he is in rep football. When City was up on Country's line, it seemed like every 2nd tackle was made by Scott. According to nrl.com, he finished with 31 tackles for the match (top for Country) and not a single missed tackle.
As I've said before, I don't think it's any coincidence that the one game last year we were missing Beau Scott was the one game where NSW's defence fell apart.
Scott is a must for Origin in my opinion.
If that means leaving out Glenn Stewart, I'm all for that. G. Stewart is a great player for Manly but I don't think it's worth trying to build a team & gameplan around him for Origin, which is what you would have to do to get the best out of him.
I would go with:
11. Scott
12. Bird
13. Lewis
14. Watmough
15. Sims / Williams (depending on form in the next 2 weeks)
The first 4 are all proven performers in Origin, and the either Sims or Williams is the perfect interchange for impact.