I don't find either particulary intense. It really boils down to what (if anything) bothers you. My one daughter hates drops - of any kind. She does not like EE, but she loves RNRC. Some people don't like the dar - or more to the point, not being able to see what is comming up. I know when we were kids, my brother would ride all sorts of coasters, but Space Mountain, despite it being tamer than at lot he had been one, really got to him because he could not see. Kind of like riding a coaster with your eyes shut bothers some people. Some people dont like going backwards, if that is the case, then you are going to think EE is worse. They are two very different coasters.
-dave