Since is the current "Universal vs. Disney" thread, I figured I'd share something I thought about as I just experienced Diagon Alley for the first time and then walked around Universal before and during the Cinematic Spectacular.
First, Universal has completely turned around what was, only 5 or 6 years ago a stagnating park into what I'm tempted to call the premier theme park in Orlando. With a few exceptions (Shrek, Twister, maybe T2), this park is fresh and full of quality attractions, the atmosphere is vibrant and exciting. The MAGICal feeling everyone talks about from Disney, if you don't also get some semblance of that while walking around Universal at night, especially in the prelude to the Cinematic Spectacular, then theme parks are lost to your brand loyalty.
Second, I have a harder and harder time suggesting WDW to anyone as a first time trip, especially if they reach adulthood before ever having visited. Without any prior knowledge of the place and it's history and relevance, or ever having experienced it in their youth, I feel like I would have to constantly explain why something is good or was once good. The parks do not speak for themselves as much as they used to.
With Universal, what people like about the place is obvious. It's there, right in your face. Lots of quality attractions, crammed into one area, with little to no advanced planning or knowledge needed. Pay, go in, have fun, pay a little more to wait less if the lines are long. That's it! Just like Disneyland. With WDW for a first time visitor is a massive process and their experience will probably not be very positive if they just wing it. I know many of you like to plan, but think about the average person who just wants to get away for a a little bit. I can't even imagine how many people these days leave WDW absolutely hating it, having dropped thousands of dollars to be thrown into a confusing and stressful mess. You can defend this all you want, but a WDW vacation is a process and most first time visitors would not enjoy that.