Had the chance to fly JetBlue from JFK to MCO and back and I must say it was a great experience.
Organized boarding well - made sure people took headphones for the satellite TV - great seats (all leather) - nice F/A's with good service and good snacks (choices of several different ones in a basket with choice of drink). The fact that you have a TV that you can watch during the flight is wonderful - this combined with efficient service at a great price makes JetBlue hard to beat for a budget carrier..now if they flew more places....