No, if you stay at a Universal owned hotel you get to skip the lines on all rides at Universal theme parks as many times as you want. Outside guests can buy this feature for around $40 a day but you are only allowed to skip the line in each ride once.
Disney's virtual queuing system, called Fastpass, does not create different classes of users. The only people that get special privileges are those that are doing something like Make a Wish or winners of a contest and these extremely limited superpasses don't impact overall wait times. The advantage given to Disney guests is that on each day a park will be open one hour early and up to three hours late. This isn't that much of a benefit during peak times because the park that was open early will have more guests than the other parks and you have to get up an hour early for optimal touring. The late hours aren't that much of an advantage because everyone wants to stay late in the park.
A naive perspective on Disney's Fastpass is that it doesn't actually impact total waiting time because the standby lines will take twice as long. This is incorrect because Fastpass lets the Disney engineers redistribute traffic however they want, which measurably reduced wait times for the most popular rides right after the implementation of Fastpass. Wait times are still higher than they've ever been though, because park attendance keeps going up. Disney is a profit machine.
For more information about waiting in line at Disneyworld, I strongly recommend Industrial Engineer Bob Sehlinger's The Unofficial Guide to Walt Disney World, whatever the latest edition is. He also mapped out a mathematically near-optimal plan for riding every single ride at the Magic Kingdom in one day. I really want to try doing that one day.
You're right. Funny how the Florida theme parks of one's youth tend to blend together.
Slate has a good (though somewhat old) explanation of both Universal and Disney's systems (http://www.slate.com/id/2067672/sidebar/2067676/). If its numbers are still more or less right, using Fastpass reduces your wait time to about 15 minutes when you come back to the ride during the window you've been assigned.
Disney's virtual queuing system, called Fastpass, does not create different classes of users. The only people that get special privileges are those that are doing something like Make a Wish or winners of a contest and these extremely limited superpasses don't impact overall wait times. The advantage given to Disney guests is that on each day a park will be open one hour early and up to three hours late. This isn't that much of a benefit during peak times because the park that was open early will have more guests than the other parks and you have to get up an hour early for optimal touring. The late hours aren't that much of an advantage because everyone wants to stay late in the park.
A naive perspective on Disney's Fastpass is that it doesn't actually impact total waiting time because the standby lines will take twice as long. This is incorrect because Fastpass lets the Disney engineers redistribute traffic however they want, which measurably reduced wait times for the most popular rides right after the implementation of Fastpass. Wait times are still higher than they've ever been though, because park attendance keeps going up. Disney is a profit machine.
For more information about waiting in line at Disneyworld, I strongly recommend Industrial Engineer Bob Sehlinger's The Unofficial Guide to Walt Disney World, whatever the latest edition is. He also mapped out a mathematically near-optimal plan for riding every single ride at the Magic Kingdom in one day. I really want to try doing that one day.