flew qr j back in Jan (not on HKG-DOH route).

Seat comfort to QR (i cant stand flying pointing diagonal. all my QR flights flies forwards. as a note you dont get full horizontal too but non-issue for me. 170degrees is all i need.

IFE to CX. 1) canto/chinese music; and 2) better CD selection layout (english chinese selection etc)

meals+drinks: QR hands down. the only minus is the halal meat that has a weird aftertaste. but avoidable on other (fish/veggie) options.

amenity kit: i always find CX's more usable. even JL's doesnt come close. so point to CX.

service: QR's FA work very hard but CX gives classier service. and i have a feeling that QR's product gets worn out faster.

all in all, if you fly premium cabin AND need a transit anyways, flying QR can replace CX as long as you dont fly those old planes. I'm HKG based and its hard to give up flying nonstop for via DOH