I don't know about Google, I don't really use any of their products, other than search. As for Apple, it seems like their trying to make things simpler, but forget that people do development work on Macs. It's never huge things that bugs be, just minor tweaks Apple make, and sometimes half-baked features.

El Capitan has seriously made me consider if my next computer should be something other than a Mac. While I do like if to "normal" computing, such as browsing, word processing and browsing, I think it's getting increasingly worse as a development platform.

Yes, iTunes is a huge mess, and there aren't any good alternatives which support iPod syncing. El Capitan isn't the bug-fix version it should have been, it's an eye candy release the introduces subtle annoyances.