I know I'll get flamed from some here, but when we went to DL just a few short months ago, I was looking carefully and really did not find a lot of difference in the upkeep. We saw burned out lightbulbs that did not get replaced during the entire week we were there, peeling paint that didn't get fixed, rides down a LOT (think Little Mermaid for one, ToT was down multiple times when we went by as well), and other small things as well. We did prefer some of the rides at DL - POC and Small World for example, but we also preferred the WDW version of some of the rides - HM and Jungle Cruise as two examples. Some have mentioned that the film for Soarin' in DL is better, and, no, it wasn't any better. We saw lots of dirt and other artifacts just like the WDW version. They both need to be fixed.
Does WDW have issues? Absolutely!! I am not blind to the fact that TDO has run the place badly, and things need to be fixed (starting with removal of the TDO personnel that are responsible!!), but I think things are starting to improve. As someone mentioned, they have spent 6 billion over the last few years on DCL and DCA, and maybe they can start on WDW. I know some insiders say that nothing is coming, but sooner or later, TDA will start shoving more down their throat.