Interesting. We currently use:
- iCloud (2TB): primarily to ensure apps/photos backed up, but also contains some files from macOS/iPad/iOS
- google (200MB): primarily for gmail & photo backup (#2 to icloud)
- onedrive (6x1TB): random documents, other stuff, large files
- local drives (4TB on pi, ~12GB, decommissioning on 10yr old pc): admittedly occasional backup
In our family we were in the process of evaluating moving away from onedrive and consolidating more in google (icloud just didn't have the usability/reliability). As it happens moving was a hassle, pushback from the users (!). I had issues with the onedrive client on macOS, though it was definitely better than Box! (work)
So in the apple ecosystem, anyone prefer Onedrive over google? They seem much of a muchness.... I think MS has a bit more skin in the game though (you can see that with Edge, which is getting rather good). google tends to forget about their old apps and development dries up.