I did get over to IOA today to ride Kong one more time, and my opinion has solidified:  Top 5 Universal ride for me.  There are lots of little details throughout that elevate it: the drivers and their personalities, the booming sound design, and - particularly - the music; the final cue taking us into the unload station culminates in this rousing, satisfying crescendo that that sends you off the ride feeling great after that up-close encounter with Kong.
After a few years of being kind of underwhelmed by some of Universal's moves, it feels really good to love a new (to me) Universal attraction without reservations again.
1.  The Amazing Spider-Man
2.  Harry Potter and the Forbidden Journey
3.  Revenge of the Mummy
4.  Skull Island: Reign of Kong
5.  Men in Black: Alien Attack