Each of the next few Fridays, I'll present one of several polls I've asked in prior months -- usually either to the ODD74 web forum or the 1E AD&D Facebook group. (ODD74 is better for OD&D-specific questions, obviously, but much smaller membership and sample size; the 1E FB group gets much larger responses, but somewhat less focused opinions).
For today, on the ODD74 forums, I asked: Do you use a phased turn structure? Now, this is of interest, because the OD&D little brown books famously lacked any turn sequence or initiative rules. One option is to look back at Chainmail, which had two different options for phased turn structures (e.g.: both sides move, then both sides shoot, then both sides melee). Swords & Spells maintains roughly that same structure, and some argue that should be taken as canonical for OD&D.
That of course is quite different from the modern conceit where a particular character does all their moves, actions, and attacks, then proceed to another character for the same. At least by the 1E DMG Gygax had (on a per-side basis) one party does all its actions, then another party, and so forth. Moldvay in B/X asserts a system where one party goes through phases of morale-move-shoot-spells-melee, then the next party.
So for those playing OD&D "by the book" who need to fill in that gap, I wondered, is there a consensus? Which way do more people lean: look back to Chainmail, or forward to AD&D-style resolution?
As you can see in the chart above -- surprisingly -- players on ODD74 are roughly evenly split. Ten people (43%) said, "yes", they use a phased turn structure similar to Chainmail or Swords & Spells. Thirteen people (57%) said, "no", they do not, and presumably use a per-party or per-character system like AD&D and later. That's a narrow lean towards the "no" side, and a break from what's in Chainmail. Also it's a small sample size, but judging from this -- it looks like there's no solid consensus.
Which highlights that for classic D&D there's almost no "by the book" way to run the game; there are specific gaps that must be filled to personal taste by every judge and table of players. If you have an account at ODD74, see the link below for discussion that resulted from that poll (and of course continue it here if you like).