Westjet is a great place to work with a Fantastic Culture. The company is growing at an amazing pace and offers numerous opportunities. As with most companies in Canada...
More like "WJ WAS a great place to work and HAD a fantastic culture. The company WAS growing at an amazing pace and OFFERED numerous opportunities."

Finish this sentence "As with most companies in Canada", both AC and WJ will stagnate and eventually, after all the blood-letting, WJ will cap out in size and AC will beg for a government bail-out, new paint and a new song to replace the present crap spewed by Celiene Dion, most likely produced by that new tramp on the block, Avril Lavigne.

The airline situation in Canada is grim to say the least, and I have been part of it my entire life. As a child, my father was #1 F/O at TCA. When I started flying and had an interest in joining AC he told me about what it was really like there and what would happen with Canadian. He called the shot- eight years before it happened!

Now the market is dominated in Canada by AC and WJ- it has similar patterns as in OZ with Queensland and Virgin battling it out.
There is Porter, a slick, niche Deluce operation, and Sun Wing, the spin-off from the ex Michel Leblanc old boys club, and assorted other small time options, but one thing is clear: The market is saturated in Canada. there are simply too many seats for the population. Unfortunately, there will always be someone out there who will try to make a buck.
Take New Air, set up by former WestJet executives, led by co-founder Tim Morgan, who drew up plans to launch a new Canadian carrier. Now they are a charter operator. CanJet... again, once a mainstay in the east and now a sunspot charter outfit- Ken, the owner, did get a nice hangar out of the deal, but CJ had a stale date from day one...
In China there are 30 airports already running above traffic levels of Pearson. Malaysia, Indonesia, India- they all operate at levels way beyond that in Canada.
Short story is forget comparing AC and WJ.
Want a job? Go get one where there is a market.
Oh, but there is the socialized health care in Canada...