Moldvay Basic was probably the best for quickest D&D character generation in my experience. Particularly if you did not use the explicitly optional encumbrance rules.
I often found buying equipment a particularly fiddly part of character creation in every edition of D&D that could be a bigger time investment than generating stats and writing down class/race stuff (even though it usually came down to armor, weapons, various fiddly other equipment).
True. And that's why Moldvay came up with Ye Old Fastpacks in B4, The Lost City. So smart. Then Greg Gillespie revived the concept for Barrowmaze.
I always liked "Ye Fast Pack" from The Lost City module. We borrowed the idea and adapted it to most of our games in some form or fashion....
1E AD&D? With all the fiddly little benchmark minimums for various races and classes in the ability score charts?The entire character creation process, not just the ability score generation.
I'm not saying you CAN'T make a character (especially a basic Fighter or M-U) in 5 minutes, but if you want to assess your options, the PH certainly doesn't make it easy or quick.