Petrol stations are interesting, I know people have different priorities but for me the main considerations in choosing where to fill up are...
How fast is fuel delivery? It does vary, and I hate standing in freezing cold while the fuel slowly trickles.
...And...
Are the traffic lanes wide enough to avoid damage from careless opening of adjacent doors while I’m in the shop, paying?
Of course in days of old, when the pumps were manned by an attendant who filled your car, took the money and back brought your change, these were not major issues.