Yeah, there just aren't many attractions at Universal I actually like (I think the 90s attraction lineup at Universal Studios was significantly better than the line-up they have now; Revenge of the Mummy is the only "new" ride I actually really enjoy), which puts it off for me. Even with the Express Pass we only used it for a handful of attractions -- it was still really valuable, because we rode JP River Adventure multiple times. The two HP areas are phenomenal (really Diagon Alley much more than Hogsmeade), though, and it's worth visiting just to see them.
With that said, the value of staying at one of their "deluxe" hotels is off the charts compared to Disney. The Royal Pacific was a very nice hotel (rooms were nicer/in better condition than anywhere I've stayed at Disney, and the bed was much better), and as you mentioned, the costs were not much more than Port Orleans and much less than staying somewhere like the Polynesian.
Having the Express Pass included is a major bonus. To me, the Royal Pacific was a better value than Disney resorts even if Express Pass wasn't included, but it obviously makes things that much better.