The Kidani Village pool is also nice, not as big or as impressive, but it is relaxing, has zero entry, a pool slide, a pool side bar, decent amount of chairs available.
Not as tropical and lush as the main pool. Hard call. There is an internal shuttle van that goes between Jambo and KV. Or you could try to get a room at Kidani?
I like Beach club too, impressive pool complex, sand bottom pool, impressive pirate ship pool slide, convenient to Epcot. Adjacent to Beaches and Cream, Yachtsman, Ale and Compass, Martha's Vineyard, Crew's Cup, Cape May, a short walk to Swan and Dolphin or Boardwalk. Close to Jelly Rolls, etc.
If he isn't into the Beach Club theme, then I would have recommended WL, but someone already has and you have checked into that already. WL is really nice.