Particularly at Universal Studios Florida, simulators are overused. However, each is very different. Despicable Me has nothing in common with Transformers, which in turn feels, acts, looks, and is much different from The Simpsons Ride. There are screens in Forbidden Journey, but the ride has nothing in common with Gringotts, which also uses screens. So one simulator does not equal another.
And honestly, in terms of bringing those worlds to life, Harry Potter probably does call for screens as those environments could never be fully realized in physical form in a theme park. You'll see the same thing in Pandora - The World of Avatar.
Even Disney recognizes this. What was their big coup last year? Ratatouille. Entirely screens and physical sets. Not a single Audio Animatronics figure. Cheaper, easier to maintain, and more realistic.
Supposedly Kong would more closely resemble Spider-Man / Transformers with digital screens embedded seamlessly into physical sets, but with a much healthier balance between the two, and some great Animatronics figures as well. Supposedly even EMV type troop transport vehicles, like DINOSAUR or Indiana Jones Adventure. And again, the King Kong animatronic featured at Universal in the 1990s was astonishingly large, but even an advanced 21st century version today would not compare to the digital version that leaps over your vehicle aboard Hollywood's Studio Tram Tour. When it works, it works. Universal's challenge is to keep it real as often as they can, and as their work evolves, I see evidence that it's happening. Gringotts is a better balance than Transformers is a better balance than Spider-Man is a better balance than......