I'm not knocking EZ, but like Final 3 Greens & Hoping noted, purely drawing comparisions and deciding on value for money, combined with agreeable departure times for the routes which I socially travel consistently.
One added bonus for passengers that I also forgot to mention
was that as least with the likes of BA/BD/KL/LH etal is that other carriers will, where seats available (and with certain revenue criteria met eg. non concession fare passengers) carry people should their flights be cancelled / heavily delayed etc...... rather than waiting for a servicable acft. Quite useful if you're only away for a short weekend!!!
Cheers
Dixie