At the risk of belaboring here:
Monorail is utterly themeless, its queue is utterly themeless and for this discussion it’s identical to Skyliner, friendship boats or bus…..free transportation on property which I appreciate.
Hogswarts Express, however, has fully fleshed out themed queues and loading stations representing their respective stops: London and Hogsmeade; immersively detailed cabins offering a story consistent with direction of travel.
Irrespective of its utility Hog Express is a legitimate attraction ——a fine one at that and commensurate with the level of excellence found in both Wizarding Worlds.