Funny thing about Shrek 4-D...In the holding area, they have this terrific theme that you are Lord Farquad's prisoners. But the minute you enter the theater, the theming is gone! It's just a theater! And the character's don't acknowledge you at all. You are not part of the story. The movie is a lot of fun, and the 3-d looks great, but it's a more immersive experience at Disney. In Muppet 4-D, you are IN the Muppet Theater. In HISTA, you are actually there at the science awards ceremony, and the characters are talking to you.
Bingo! That's exactly what I meant. The actual Shrek theater is very plain and with regards to being "immersive" - that's exactly what I meant about Terminator. The whole movie leaves you in a very passive role, just sort of watching things run around and occur (except in the final sequence, which I admit is pretty creepy).
Also, I strongly disagree with the general characterization that the difference between the two is a "younger kids park" and an "older/ teen park".
That's what I thought, and that's why I was initially excited about trying out the "more grown up" Universal.
But it wasn't JUST different - it was also (again, IMHO) worse. Substantially so. For the reasons stated.
I'm not saying there's nothing good at Universal. I enjoyed Twister. I enjoyed Jurassic. In fact, I think the T Rex in Jurassic is better than the one in Dinosaur - and even more "subtle" and realistic. The slushes are awesome at Universal. Spiderman is perhaps more innovative than anything at Disney. The mini-waterpark at USO was way better than anything comparable at Disney.
But my honest opinion is that Disney is not only DIFFERENT but much BETTER. That is not a "biased" opinion. Biased means that you have an interest in one side or the other, that your opinion is somehow not pure, but tainted by some other consideration. My opinion is strong - I like Disney better, by a long shot - but it's not biased. I have a stronger childhood attachment to Scooby Doo, Spiderman, and ET than I do to any of the Mouse characters. I was prepared - excited - to really love USO. I just didn't.
I could give many more examples. Spending 30+ minutes to park, or disorganization in ride loading. The air conditioning was way lower in most places - except expensive restaurants. Many of the queue lines were boring and unadorned. When I asked the guy at the slush stand whether lemon or blueberry was better, he just looked at me bored and shrugged. No response. Big deal. No. For course not... None of this is a big deal. But again cumulatively it left me with a sense of unmagicalness.
I think what I love most about Disney is the sense, for a day, that you're in sort of a parallel world. Not a perfect world, or even a magical world, just a different place. And I think the reason is the cumulative effect of lots of little things - like not waiting very long to park, or having someone be just a shade nicer to you, or noticing a cute detail in a ride - heck, I swear there is even a particular smell about many Disney rides. But at Universal, each time I had to wait to park, or got bored service, or had to queue up in a boring line, etc. it just felt like... well like I was at an amusement park. Nothing wrong with that - but not comparable to the Disney experience for me.
Was my experience unique? Might it have been different on a different day? Maybe. But I had three days and logged an awful lot of examples of things that jumped out at me as inferior to Disney. My wife felt the same way.
I certainly understand why others may disagree. Some people - particularly teens and young adults - are going to want adrenaline over all else, and Universal gives that. Some people just don't care or notice some of the details that bug me. Do you care (like I did) if the theater in "bugs life" is way cooler than that in Sherk? Maybe not. There's nothing weird or wrong about that, its just not something that registers as important for you. (For instance, a stereo system with really bad bass really bugs me. My sister in law could care less. That's just a difference in how we view things. On the other hand, I'm not very fussy about my food, whereas my wife has a fit about some small details.)
But, if you have the same sensibility as I do, I can't imagine you'll enjoy Universal as much as you like Disney.
In the last 18 months or so I've spent roughly 15 days at WDW. In my 3 days at USO and IoA, I left early twice to spend time at Disney again.
Should you go to Universal if you haven't? Absolutely. I'm glad I went. There's some cool stuff over there. Would I go again? No. (Except, perhaps, to see Potter). On the other hand, I'm already planning my next Disney trip.