It seems that both had alleged collaborations with PRISM. The main difference I see between the two wiki articles, is that people complain about Microsoft's telemetry but not Apple's (even though they do have a lot of telemetry [1]).
In general it feels like Apple has won the trust of the public, partially through good products, partially through good marketing.
Windows 10 is a privacy disaster compared to previous versions of Windows. They track every single app and website you open, what files you have on your PC, and much more.
Please compare the severity and extent of
https://en.wikipedia.org/wiki/Criticism_of_Microsoft#Privacy...
with
https://en.wikipedia.org/wiki/Criticism_of_Apple_Inc.
Depending on how you weigh the issues MSFT is far from equivalent on privacy