Pay/retirement/401K: AMR is clearly better. They have better rates, a B fund and an A plan. No contest. At DAL it's closer than you think in most seats and JetBlue is marginally better in some cases. The combination of 401K match and profit sharing is within one percent of DAL's combined 401K/B fund, but we have to contribute 5% to realize it. Because DAL pilots have slightly better rates in most seats and they realize the full potential of their retirement with only a 2% contribution they are overall better off than a typical JetBlue pilot. JetBlue pilots currently enjoy better monetary compensation than their UAL peers.
I'm not familiar with AMR or UAL disability/LOL benefits. I can only assume they are better than JetBlue's because, frankly, ours are barely adequate. I'm somewhat familiar with DAL's and I know they are better protected than we are. This is probably the biggest difference in overall compensation between B6 and the legacy airlines.
Medical? I have no idea. Depending on which JetBlue pilot you talk to our's is either average or awful. Nobody I know thinks it's great. I think it's average compared to most large businesses. I'm not sure where it is in relation to other major airlines. When our PWCs were trying to compare ours to the industry it was difficult to get exact apples to apples comparisons. That info is actually quite closely guarded.
JetBlue's total package is not as good as AMR or DAL. It's about equal to or slightly better than UAL. YMMV.
Before anbody else says it, I agree with you. Our current industry average derived compensation is riding the coattails of wages/benefits earned by dues paying union pilots. I get it. I didn't like it as a Comair pilot when Skywest did it (still does) and I'm not proud of it now. We're working on it.....