not the "longest", but back in Ontario I've had 45min lift lines at Blue Mountain some weekends which is saying something because it was for a 6 man chairlift where it takes 2min to get up the hill and 1min to get down.
to everyone thats saying Breck, thats b.s. I was just there for a week and the lines were nothing compared to the lines at Sugarloaf. This is the line I waited in two weekends ago, its so long that you can't even see the lift.
i am by no means a local ive only skiied whistler four times, but it was over winter break. i was expecting the worst, but i never had to wait for more then five to ten mintues. there was also decent snow, but not an epic pow day. ive had worse lines at my own home mountains