Prepare your pitch forks, but I genuinely believe Aces High to be a borderline unsingable song, even back in the 80s. The chorus is anthemic and Bruce soars, but the verses have always been an utter disaster.
I'm listening to bootlegs from the World Slavery Tour and even early in the tour that song has always been rough. Bruce strains like hell and barks rather than sings the lines. Even on good days it sounds like Blaze did on Bruce songs.
It's a legendary song, but imo it has never sounded good live. Hell, they recorded overdubs for the LAD version and that still ended up sounding rough as hell. It's pretty interesting how everyone and everything gets scrutinized to hell and back, but for whatever reason the various Aces High versions seem to get a pass by the fandom.