Having flown Ryanair from Stansted in Sept 2012 and Easyjet from Luton in June this year, our opinion is Stansted is the better airport but Easyjet were the better airline. We had good flight times on both occasions, early flights out getting to SS by mid-afternoon and returning in the middle of the day, meaning we didn't endure a very early morning departure or hanging around in the resort. Getting a taxi transfer is a big plus too, at 45 mins its sooo much better than the 2 hour Thompson transfer bus. We'd definitely recommend it, it works well for us. As you said, Easyjet are releasing their April, May and June 2014 flights in early Sept.