Call me old school, but I think they should do something old school with Barrett and the ic belt. Like get a good feud going with someone who compliments his ring style. Build up a good storyline until wrestlemania and have a 30 min plus match, like Steamboat and Savage, which steals the show at wrestlemaina or maybe a old school ic championship cage match ala Valentine vs Santana. Something personal and creative.
I don't have an issue with Barrett eventually winning the WHC or WWE, but lets showcase the ic belt big time, like it once was, at WM and put a little more importance and prestige in it instead of it just being a mid card stepping stone.
That's what I would want, but Orton, Sheamus and Barrett could put on sick matches...agreed. But I believe the #1 contenders for WM either comes from the EC or RR so their would be no need for just those 3 to feud until WM for a shot, is how they have it set up.