If you can handle Rockin, I'm sure you can "do" pretty much any coaster out there.
That being said, Hulk is considerably more intense than Rockin, maybe not in terms of quantifiable G-forces, but the way it throws you straight from the angled launch into a cobra roll and then into a vertical loop is more violent than anything else in Orlando. I haven't ridden it since they refurbished the track, but in the best conditions a B&M coaster is just about the smoothest thing out there, even when it's doing crazy maneuvers.
RipRide is less intense than Hulk, or even Rockin, but if you have a fear of heights it may bother you, especially the vertical lift. It also is rather infamous for those particularly uncomfortable Maurer-Söhne restraints. Honestly, though, the most stressful part of the experience is having to empty your pockets into the lockers and getting wanded by the guards.
If you've done Rockin, though you're probably ready for both, and if you can enjoy the first 20 seconds of Hulk you're ready for anything the roller coaster world can throw at you.