J.Quondam
CR 1/8
I guess ultralites aren't really actual "editions" of D&D, but it might be fun to try a megadungeon with one of the Microlite74 variants or something.
Super-fast chargen and rules that fit on a few pages make for a low buy-in cost, so might be easier to sell to some players (and even certain older GMs like me with, umm, crumbling brains). Balance is usually awful and character options are limited, but IMO that's not really a concern in an old school megadungeon, anyway. And it's easy enough to bolt on whatever rules modules you need (eg, "detailed" resource management; no skills vs few skills; spell slots vs spell points; all d6 weapons, etc) for the specific game you want to run.
But if I had to choose an official version of D&D, I'd probably go with Basic.
Super-fast chargen and rules that fit on a few pages make for a low buy-in cost, so might be easier to sell to some players (and even certain older GMs like me with, umm, crumbling brains). Balance is usually awful and character options are limited, but IMO that's not really a concern in an old school megadungeon, anyway. And it's easy enough to bolt on whatever rules modules you need (eg, "detailed" resource management; no skills vs few skills; spell slots vs spell points; all d6 weapons, etc) for the specific game you want to run.
But if I had to choose an official version of D&D, I'd probably go with Basic.