Super Mario Bros 2 - even though it wasnt the Lost Levels one - this one gets my vote as it is the most memorable of the ones in the list.
Played it a over a dozen times - across the NES, SNES, and GBA. Will be playing it on NSO again in the future.
I did play Zelda 2 and Final Fantasy I but dropped them on both for the NES years ago.
I did finish FF1 on GBA, PSP, and Switch and I'll try Zelda 2 again on NSO in the future since I finished the original Zelda few months ago.