Billy Bishop Airport is the poor cousin of Pearson Airport, it being a small regional alternative to its bigger peer. It almost has the feel of a bus depot than an airport. But it's convenient enough, with shuttle bus taking you to downtown. Not that it's as convenient as the train shuttle at Pearson, but hey, it's free, and you can't beat that. Generally, when I have time on hand, I tend to choose Billy Bishop over Pearson.