Actually, also, I distinctly remember, trumping four other SEs for the last YYZ-YQR seat, last year, and I was only flying on a tango plus ticket, and had very year to date miles at the time (and the year before I barely qualified for SE). Unfortunately I don't know what fare class their tickets were, but I'm guessing the winning factor is that I had just flown in from LAX, and that obviously got me the seat. Although this this part is pure speculation, they were all wearing suits and travelling for work, and so I wouldn't be surprised if at least one of them had a flight pass (i.e. M class).