I lost count of how many times I reaet, I reset all day and into a the next morning before I was truly satisfied, I did trial a few towns though, I was moving so as soon as I chose a spot my whole house just popped up there and I could see what I thought. A few towns I almost kept just because they had a villager I liked but that was one of my deal breakers...
Must have:
-Peaches as fruit
-large open spaces in the north half of the map for PWPs
-retail/town hall/plaza in convinient paces where I would go past them often but would not be in the way
-south facing waterfall
-NO villagers I like (because I planned on moving them in from my old town and plot resetting them)
-right angles between all key places to run my paths (natural dirt)
Also wanted:
-brown/black or green station/town hall
-Ponds out of the way
-rocks out of the way
Then, on the second morning of resetting I found a river layout I loved and decided I would only accept that river layout, and it wasn't one of the common ones! It took me a while but I found my perfect map:

Complete with peaches and the right town hall/station colours. At first I wasn't sure about the plaza/retail position but now I love them!!