Personally, I'd pick Jetsgo over Westjet. I much prefer sitting in Jetsgo's MD80 left side (the side with 2 seats) over Westjet's B737 3-3 configuration. Jetsgo's legroom is decent (I measured the pitch to be around 32-33'). I didn't measure Westjet's pitch last time I flew with them. I must also comment on how quiet it is to sit on the first 15 rows of the MD80s. The only thing I can hear is the ventilation system!