Purely selfishly I’d like to stick with 13 or move to 14 - just because you get to enjoy more games.
12 or 14 for me. 13 with teams getting arbitrary weeks off is an unsatisfactory solution that was supposed to be for 1 season, officially to bridge the league from 12 to 14, but in reality was a means to allow Sarries back in at the earliest opportunity.
I wish Doncaster well with their appeal. They would be a welcome addition to the Premiership, adding to the league's geographical reach, rather than diluting it in an already saturated area. I have nothing at all against Ealing, and certainly not against promotion on merit, but the last thing the Premiership needs is another club in west London.
The purely selfish view from me is that Jersey should be promoted, and that Wasps' away trip there should always be very late in the season.