I refer to the positions as starboard = #1, port = #2 and aft = #3 in the direction of flight.
#1 is almost never used, #2 is also very rarely used and #3 is used the most. If you see photos with two aircraft in positions #1 and #2, it is mostly a "parade lineup" from which there will be no take-off.
This also explains the different intensity of the tyre marks at positions #1 and #2.
And if you look closely at the aircraft at position #2, you will see that the tire marks coming from there are not from position #2, but from position #3. The main landing gear is one tire width away from the tire markings, but exactly aligned with the brake pads.