If there was a reliable way to get (as PLF) on the DoD wait list for extra space Y seats on DL operated flights, plus Domestic first allbeit lowest prio, I would fly Skyteam to the US.

Only KL metal is not good enough most destination you have to connect with DL.

I have BA silver and AA does a so much better job for BA silver members than DL for KLAF Platinums.