Having experienced both I prefer flights operated by FM on behalf of MU any day of the week. Shanghai Airlines beats China Eastern in almost every aspect, short- as well as longhaul, hands down.

During the WNZ-PVG flight FM changed the mood lighting in the B738, closed the curtain to the Business-class (with the metal sign attached to the curtain) for five minutes, before they started to "secure the cabin" for landing....which I found hilarious and over the top, but thats adhering to procedures.