Yeah i'm aware of the washing to AA but the value turns out to be marginal unless you're earning major points.It has been possible to earn AA for ages: 0.625 withAmex MR, 0.78 with Diners MC and 1.78 with Diners. I wouldnt expect a putative specific AA card to earn better
It's a little messy for me as I earn a lot of points via work spend on my personal card (long story, but work allows me to). Most in foreign currency so i'm earning 2 points per AUD (QF Ultimate card), and i'm putting a lot through my card per month The inflated QF awards are more easy to tolerate but the taxes not so much.
It's just a shame that nowhere except hotels airlines and supermarkets really take Diners.
AA direct earn cards in the USA are amazing, but of course, huge market, competition and home ground. Different kettle of fish.
There's not really an Amex that makes the points earning/washing to AA worthwhile.