FWIW, China Eastern is actually pretty good. In particular, the hard product is excellent on transpacific flights - true lie flats with direct aisle access for all passengers. The staff are actually by and large warm, friendly and competent as well. My main complaints are mostly details I can overlook for a great price - their web site is a travesty, transiting PVG can be a hassle because of ATC delays, and the catering is hit and miss (dat garlic bread though!).

For Delta fliers, the mileage earning and hard product is so fabulous it’s easy to look past the occasional glitch in the soft product. I think MU is a lot better than the one or two bad mileage blog reviews make it out to be...