With Jetblue you get a PDB of your choice. The last time I flew AA F TCON, they didn't offer any PDB. Sure I had champagne in the flagship lounge, but still. And while they will let you into the Admirals club if you fly in J, you won't get any drink chits. And in JFK with so many people in the club because of international flights (they get drink chits) you might feel like a poor relative without them.