I think Hulk's start is more intense than RnRCs, but they are probably pretty close. Hulk's is uphill, while RnRC's starts on the flat, IIRC.
Mummy is not nearly as intense than the other two. The stops are 'worse' than the pushes, IMO. Mummy 'feels' more intense than it is - it's indoors, dark, and there are fans throughout the ride that blow on you to make it feel faster.
For reference, we love the launches on all of them, so take our opinion for what it's worth.
Mummy is our entire family's favorite ride in Universal, and maybe in Orlando. It's a close battle between that and Tower of Terror, I'd think.