Yea, Hulk and Spiderman get about 80 minute waits at around noon. Because everyone sees it and runs right to it.
Dragons doesn't get as many people til later in the day, because of the crowd naturally flowing clockwise around the park. If you get to IOA at opening, and go to dragons, you'll have the place to yourself for a good 20 minutes.
As the day progresses, the wait times will drop down on Hulk and Spiderman, but still are about 30 min. waits.