On Delta:
1. Preferred Seats--especially important in DL's cramped coach cabin (upgrades? what upgrades?)
2. Preboarding
3. First Class check-in


On American:
1. Bonus Miles (If I weren't Platinum I would say First Class check-in)
2. Preboarding
3. Upgrades




[This message has been edited by stephlac (edited 10-02-2001).]