USF has some really great and beloved rides using practical effects and animatronics. Mummy, Men in Black, E.T., and the land of Diagon Alley + queue for Gringotts are really amazing imo.
Unfortunately, it seems like the park currently still suffers from oversaturation of a specific kind of ride: screen-based motion simulators. We're currently discussing in the FoP thread how even the best of that kind of attraction has limited re-ridability, and so when some are lacking and actively getting worse like Simpsons with it's lack of tune-ups and Minion Mayhem losing it's 3D Element, it can cause problems. Fallon, Villain Con, and Transformers would probably be fine B-C Tickets if the park wasn't already filled with similar attractions. I think all three have really solid positives to them, especially Transformers, which is only somewhat lacking imo because it's so obviously similar to the best themed ride of all time which is a 10 minute walk away.
Rip Ride Rock-It is controversial around these parts but lots of people still enjoy it. Bourne is an incredible stunt show with lots to enjoy and that I think is surprisingly repeatable. HMU and AA are cute, but not incredibly striking. Gringotts is a really fun ride that definitely acts as a headliner attraction, but again, a lot of the experience is through Screenz and goggles. Just adds to the overall feeling of sameness that one could get at the end of a full USF day.
It's also why I think USF is at it's best during HHN. In between the exclusive yearly Haunts, you can very easily get on all of the highlight attractions at USF with practically zero wait besides RRR. If E.T. and Bourne were open, there'd be practically no reason to go any other time of the year, and even then you could probably just nab a Scream Early pass.
Another big budget land like Pokemon would do a lot of good for the park around the Simpsons area, especially if it came with an attraction with mostly practical effects. I've always thought that a Seaworld or Animal Actors type show hosted by a Pokemon Professor going through different types of Pokemon and showing off their special abilities via Animatronics, puppets, and the like would be incredibly cool and would give a really great show to USF which it really does need.
And FnF, what hasn't been said about that mess. It's overly loud and jarring, messy nonsense, the tunnel effect consistently breaks the illusion by having the orange-lit car tunnel open up before the left facing tunnel lights stop moving, the musion effects for the party are laughable, and pretty much the only redeeming quality is if you get good preshow performers. It's a massive, screen-based motion simulator blight that needs to be torn out as soon as possible. This could be a spot for something maybe not of the same type, but same flavor as Hagrids. In the dead center of the park, having a large E-Ticket with lots of sets and practical features would really help to elevate the park a lot. A Mini Hill Valley BTTF coaster is of course the obvious fan answer but I'm sure they've got something cooking that will be satisfying, even if it might take too long to arrive.