Strong disagree on gmaps, especially with Apple Maps available for iOS users. Gmaps is strictly better, but not enough to balance their incentive to truly abuse that data against me.
Beside that I’m a big fan/contributor/user of OSM (maps.me is my app of choice there). But if you want to go with one of the big, polished players, I chose the one that has little to gain and much to lose from abusing my personal data.
These are strong unequivocal statements. We should all be very surprised if they're outright lying.
I get frustrated with the hoodwink that Apple seems to be playing, as they move to services based revenue I have no doubt these lines are going to get blurrier and blurrier.
You can't sign in to Apple Maps. Apple doesn't know who or where you are, except via a random frequently rotating identifier.
Google pushes you hard to sign in with your Google account, tracks your searches and location, and associates that data with everything else they know about you.
In Apple's ecosystem you cannot opt out of sending Maps queries from maps links to Apple at all. Additionally, if any app at all requests your location, iOS sends your location back to Apple, and you cannot opt out. On even Google-flavored Android devices, you can choose not to send any location information to Google at all.