According to Lucian's useful website*, seats on Ryanair are/were allocated in this order, from A to F:
33, 20, 19, 22, 15, 24, 12, 26, 10, 28, 8, 30, 18, 21, 14, 23, 11, 25, 9, 27, 29, 7, 6, 5, 4, 3, 2, 1, 17, 16, 31, 32
This matched my experience and it was possible to predict which seat you would get by checking the seat plan before check-in to see which seats were still available to be purchased.
I now believe it to have changed so that seats B or E are allocated to solo passengers not paying for seat allocation.
Any thoughts?
*
http://flights-blog.lowcostroutes.co...at-on-ryanair/