I agree that cost is not the main factor here, because the real battle is being fought in the free tier of all these services anyway.
However I'm not sure iCloud wins on convenience unless you live entirely inside an Apple ecosystem (and even if you do, do you want more lockin than you have already?).
For me convenience is about universality: which ever company gives me the best experience across every platform is the one that wins. iCloud fails because Apple has a fundamental conflict of interest in making your experience better on iOS vs everything else. Of course, they also can employ anticompetitive measures to ensure that all other services are worse on iOS so I guess it sort of evens out. Google has some similar issues but I think they have a much broader interest in making their service universal than Apple does. Mainly, I don't really trust Google to get the quality up to par ... so many of their services seem to get 95% of the way there and never get the final bugs ironed out because they are "good enough". But we'll see.
However I'm not sure iCloud wins on convenience unless you live entirely inside an Apple ecosystem (and even if you do, do you want more lockin than you have already?).
For me convenience is about universality: which ever company gives me the best experience across every platform is the one that wins. iCloud fails because Apple has a fundamental conflict of interest in making your experience better on iOS vs everything else. Of course, they also can employ anticompetitive measures to ensure that all other services are worse on iOS so I guess it sort of evens out. Google has some similar issues but I think they have a much broader interest in making their service universal than Apple does. Mainly, I don't really trust Google to get the quality up to par ... so many of their services seem to get 95% of the way there and never get the final bugs ironed out because they are "good enough". But we'll see.