I have never understood peoples' love of WAZE but I also understand different Map Apps excel in different regions. I know here in Calgary, in my experience, WAZE frequently gives exceedingly bad directions. For instance, suggesting a left hand turn across 4 lanes of traffic at an uncontrolled intersection in rush hour where if I drove for two more blocks I could turn left at the lights onto the road I needed to be on (no accident, no slow traffic, no logical reason). I have also had WAZE give me a 5 turn direction to get on a road that all I had to do to get on the road was turn right at the intersection I was at.
That can be true of both Apple Maps and Google Maps as well. Here in Calgary I find Apple Maps superior but a couple years ago when I was in southern Ontario west of Toronto there is no doubt that Google Maps was more accurate. In any case, competition is good, user experience can vary, apps are always improving, and anyone who states one app is superior in all ways to all other apps has a very closed mind.
That said, I use Apple Maps in almost all cases as it suits me just fine, though I do get frustrated when it suggests businesses that are not in the same country as me sometimes. That does need to be worked on.