In my case, I vary between 4 of the listed choices, not particularly favouring any particular one over the others but I can't register that in the poll and were I to select only one, I cannot imagine how that might be helpful in any way to anyone else.
Really can't answer this as I used to use Waze but since Kia updated navigation to TomTom I have been using that to look for issues. But do flick to Waze from time to time.
Such as today to see if Waze uses GPS for speeds (which it does) as it was brought up the other day.
I have just edited the poll to allow multi user choice. As I'm sure some will use more than one.