Nevermind that iOS provides an extensive list of system-level data collection toggles. Don't want to contribute traffic data? Done. Don't want to contribute cellular/wifi location data? Done. Don't want your phone collecting data about what stores you visit and when? Done.

With Android, you don't have a choice for any of that. It just does it. Google Maps constantly slurps up every bit of location related information it can, whether you like it or not.

iOS even allows for forcing apps to only have access to coarse location data - it's off by a few miles - as well as only granting location data when the app is actually in use. Also options you don't get with Android.

The only thing I miss after switching: Android allowed for controlling not just cellular data but background data.