In this post, I outlined the editions of D&D as the world sees it (with some personal XP woven in). What I did not do is explain which editions I consider editions of D&D. There are two editions of D&D. This is told from the perspective who came into the hobby after all of the TSR editions of D&D had already been produced, but none of the WotC editions, which as I've stated before I don't consider to be D&D canon anymore. With that being said, here are the two editions, from that point of view:
1: AD&D1E: AD&D1E is the culmination of Gygax's work on the Dungeons & Dragons game. Everything before it was essentially playtesting. There weren't any full games before it, so I consider it the first edition worth any note. That being said, as I've stated in the past, OSRIC completely subsumes it's position to the point that people should no longer be playing AD&D1E, especially not any OSR folks.
2: BECMI D&D: So, since I didn't begin campaigning in 1981 with Moldvay B/X, the game appears redundant when sat next to BECMI. The Rules Cyclopedia similarly doesn't have the proper breadth to encompass all of BECMI, so it is merely a portion of the same game (a sizeable portion, but a portion nevertheless). All that being said, Dark Dungeons is a superior build of this game mechanically, incorporating hundreds of errata fixes.
While AD&D2E is my original edition, I've come to loathe it's existence as it was the edition that killed D&D, as well as introducing many of the shitty elements that would revigorate D&D's corpse for WotC's purposes. It was also an easier to read, less "offensive" edition made to placate BADD, and simultaneously written so TSR could stop cutting Gary Gygax royalty checks. It's fairly soulless and what flavor it has originated in AD&D1E or in the myriad of campaign settings rather than the core rules.
So yes, that's it. Other editions exist but none are really there complete and full games except these two above.
