Someone who likes THAC0 in 2020, a rare breed indeed.
Less rare than you might think, we've just adapted
I actually prefer 1st ed. AD&D to AD&D 2nd ed., but it's a close call. Never could get into 4e, it was too streamlined for me while 3.0 and 3.5 felt too much like spreadsheets.
I wonder how many people still remember Mystara (my favorite setting along with Oerth (Greyhawk)) today though
I had fun with 1e back in the 80s, but I wouldn't want to play it today. I do remember Mystara, had a bunch of the Gazetteers for it. Quite a detailed setting. I hated Greyhawk though. Dragonlance and Forgotten Realms were my jam, and later Dark Sun and Planescape (those latter two being my favorite settings of all time).
Dragonlance (Krynn) was great, as was Planescape. Dark Sun might have been interesting, but somehow our DM ruined it back then and I never gave it another try. I'm also a big fan of Ravenloft, but only the 3.x version (never liked the old version much ).