Airliner World beats them all hands down. Airways is good too but includes a lot about historic airlines, airports etc, and tend to focus a little too much on the US for my liking. I just like airlines from around the world...hence Airliner World!!
Airliner World is a good bet. Also with you being Canadian like me, you should check out "Wings" magazine. It's all about Canadian aviation commercial and some military. It's excellent! The Oct issue had a seperate mag that came with it, all about Westjet. It's cheaper than the others (obviously it being printed in Canada).
Australian Aviation *rocks* - it is seriously one of the most in depth magz in the world, and delves into just about all facets of aviation. (Granted, some of you may not be interested in accident reports, but those of us with pilot's licences certainly are!)
I buy Flight International every week, for it's broad spectrum of Aerospace news.
If Air International has several interesting articles, which it almost always has, I get it.
Air Forces Monthly less often.
Very occasionally, Airways or Airliner World.
Sometimes UK historical magazine, Wingspan.
Hard to get in the UK, but sometimes Air and Space magazine.