Originally Posted by
mkgrip
Depends where he credits to, AA still gives you full miles so depending on which routes he flies mostly and what other flying he does, he might earn anything up to executive platinum on AA. (On AY Minus he might or might not make silver if that's cheapo-Y)
Valid point and it's true that AA would be the best OW program for most coach flyers, especially those who fly a lot on el-cheapo coach tickets and do a lot of long hauling, especially if the target is status and standard flight awards. Upgrades are tougher, though, if one flies mainly AY metal and credits to AA.