My wife and I are taking a belated honeymoon later this year to LAX and MCO, and we've decided to splurge a little bit by flying First, as she never has and I've only gotten a surprise upgrade on AirTran a few years ago (The look on my parents' faces as they walked past will always stay with me!). The two airlines that are constantly trading places farewise are American and Delta. Any significant pluses or minuses to consider with their First products?