As to OP's question about comparison of lounges at HNL and NRT:

HNL - RCC is nice but unspectacular. Haven't visited the PC there.

NRT - RCC and ANA lounge are both very nice. RCC has better showers and shower amenities, if you are looking for that, and more convenient outlets for laptop cords. ANA has better food, including wonderful bowls of real ramen (not the dried stuff reconstituted with hot water). It's really hard to go wrong.