My UOs
Haunted Mansion is better at MK than DL, hitchhiking ghosts and all (when they work). I also think MK has better versions of Big Thunder, Space, and Jungle Cruise but opinions on those seem to be more evenly split.
I don't miss the Skyway one bit.
I do miss the Studio Backlot Tour, even when it was whittled down to just Catastrophe Canyon, a handful of props, and the costuming department.
Everything about Toy Story Land is "meh" at best.
Hollywood Brown Derby is overrated.
I miss seeing World Showcase without festival booths.
I'm over the AK Finding Nemo show at this point.
While there are certainly some "misses," I think Quick Service dining at WDW is generally pretty underrated.