Pretty much everyone knew Seattle was going to be bad this year, and they were pretty bad. NYC was more up in the air because they had a lot of moving parts, and Prince didn't join till about 1/3 into season.
I would have probably given ROY to Stokes, but I disagree that she is the 3rd best player on the Liberty. Tanisha Wright is a savvy veteran who is the glue a lot of the times for that team--solid in every area, and with playoff experience. Liberty is very unique team in that there are two obvious starts in Charles and Prince, and then a lot of role players who do their part.