Just spent a few days at Uni last week. It's hard to go through this thread and follow the arguments being posted, but I think I get the gist. I'll offer the following observation:
On Monday and Tuesday of last week, my family was at Uni and my parents were at WDW (they hit MK, Epcot, and DHS). They reported significant, although certainly not unbearable, crowds from park opening to park closing at whatever park they were at. Lines at both Uni parks were minimal, to the point that Tuesday evening, we entered Wizarding World at 7:00, at at Three Broomsticks with no wait, walked onto Dragon Challenge, Forbidden Journey, and Flight of the Hippogriff, and could have walked into Ollivander's with no wait. This was a holiday week and we were in the most popular section of the park. Earlier that evening, we had walked onto Hulk, Spiderman, Dr. Doom. and Cat in the Hat. Crowds during the day were more than walk-on, but waits were minimal except for Minions and Forbidden Journey (Even Transformers had a short line most of the time).
So, based on my anecdotal evidence, it appears to me that Disney is likely winning the battle for quantity of guests. And this, after years and years of Uni outpacing WDW in attraction development.
