Actually, people who have done the WOC package with Carthay Circle are reporting that they are getting spots around the VIP area. Essentially, if you dine with CCT, you don't have to line up as early as people did in the past for preferred dining. When you show the CC WOC pass, a CM will actually place you in a spot rather than you lining up and holding it....Hopefully that made sense.
I would rather do CCT for WOC because I would have a better chance of enjoying the meal (we are foodie types), plus you get more specialized attention when it comes to your WOC spot.