I switched to Apple Maps several years ago and whenever I go back to Google, particularly on mobile, my preference for Apple Maps is confirmed. Google has too many ads (especially showing the ever-present Walgreens icon) and too much visual clutter. I do prefer Google's pins to Apple's dots, but Apple makes it easy for me to categorize locations with different lists and different colors. Google lets me do much of this, but doesn't allow me to set differing colors by list. Also, their 'favorite' list is just the most recent 500 starred places, so once something goes to 501, it simply disappears.

Definitely still room for improvement from Apple here, but they seem way more engaged and invested than Google does at this point.