I'd say 90% of people are going with 256GB. Anyone going bigger?
I initially went for the 256gb Pro Max, but then changed it to 512. My photo library size is 120gb, so didn't want to almost half fill a phone on day 1 of ownership, that I intend to use for a for years.
Always snapping photos and video of my daughter doing stuff, so I'd rather have the space (and new pics and video will take up far more space!)