Go with etihad much better experience onboard. Seats are flat beds. On demand dining unlike emirates. I think the only edge emirates has is on the IFE but etihad is not bad too. Also etihad miles are way more valuable than emirates skyscam miles the only thing i wouldnt be able to tell you is the connection from gla to man. I feel etihad onboard experience is way better than EK and they are cheaper!!!!