Is is VERY VERY easy for an airline to offer a great experience in first class when you're paying over $5,000 for a ticket. For that money they BETTER offer a great experience!
So, COACH only- who had the best food, decor, service, extras etc.
I will actually take the advice of the person who offers the best answer.
JET BLUE! if they are not at your local airport drive to the one that they are at, that is what I do here in RI and it is worth the drive!