Basic Fantasy stood out when I was looking to "go back" but couldn't yet afford the advanced first edition prints from drivethru... well, now I have few of those reprints but every single Basic Fantasy book, so I guess Basic Fantasy won me over. My favorite module types, regardless of branding, are anthologies like the AA series here or I13 from "those guys". Feel free to offer me suggestions for modules of those kind, whoever may offer them.
I use arch btw.