hot on twitter. best seat? in order.
left to right in the photo: 2, 5, 3, 4, 1
1, 3, 5, 4/2. Except 1 & 2 are degraded when the map is behind them, leading to people leaning over you. On the D line to work I often prefer to stand against the door on the side I know will not open during my ride.
There are variables: length of ride; how crowded is the train, and how crowded is it likely to become? Are you carrying anything? Is it winter, with people wearing large coats? Assuming that all the seats may end up occupied, 2 is the most compressed, especially if large people sit on both sides of you. 4 can also be cramped, hard to get in and out of, and with limited leg room. 5 is a little better, and people often sit at an angle to minimize foot conflict with 3 and disruption from entrance/exit from 4. 3 can get bumped by 5/4. 1 only has one other seated person to conflict with, and has elbow rest/room on one side, though if the train is crowded enough you can get squeezed from any direction. As noted, you want to avoid the bench in front of a map, but most don't have one. Overall, I prefer 1, though people getting on and off can be an issue when things are busy, but it's also easier for you to get out.
i had 1,5,3,4,2 as well. surprised how many people on twitter went with 4 first which i can see for a long trip wouldnt be bad but has its demerits as alex enumerated. crowds and distance make all the difference. if 1 or possibly 5 isnt free ill usually stand by the doors but im rarely on for more than 15 to 20 minutes.
I'm more of a strap hanger or door leaner but I like 4 for long distances or if not crowded.