I think the killer feature of photo management is face & scene recognition. It's like turn-by-turn instructions and traffic info is on Maps: try it once and you're hooked.
It's a pretty serious commitment to choose a company to keep your priceless photos. It's hours of uploading, weeding out the junk, and telling the algorithms who everyone is. 👈(And that makes you think about privacy 😳). I'd like to do it once in my life and not have the company I choose decide they don't want to do this after all.
I decided to upload 10,000 photos to each service and put them to the test.
The first thing I noticed is Amazon offers free unlimited storage of both JPEG and RAW photos if you're already a Prime Member, which I am. Hard to beat that deal. Google is free if you don't mind them downsizing your photos (I do) and you don't want them to store RAWs. Else it's $20/month for 2 TB of storage (twice as much as Apple) or $100/month for 10 TB, which I have. Amazon Prime would save me $1,200/year.