I'm not a true wine connoisseur, but I fault AA for not having any California chardonnays in international business class. They have a good one in first, a drinkable one in economy, but none at all in the middle. They do have a French Burgundy, which is the same basic grape and which some might prefer, but to those weaned on American wines it's a different taste that I happen not to like as much.
When I'm in AA business class, which is most of the time on international flights, I explain this to the FA and ask him or her to please get me some from either "back there [pointing aft] or up there [pointing forward] - your choice." It's usually from "back there." On my last trip it was from "up there," and the FA refilled my glass twice. She got an SOS for her efforts.