What Nestor said.
Also, because the overall quality of today's modern handguns is such that reliability is no longer usually a giant "what IF?!?" but rather what you can depend your life on...you have a much wider selection to choose. In the early 1980's there was actually VERY few choices for serious and dependable handguns...either you got a revolver, or you chose a Browning HiPower, a Colt 1911, a S&W auto, or one of them foreigner Berettas! There was lots more guns out there than that, but most of the rest didn't have that great a track record on reliability, and mileage durability.
IMO handguns need to "fit" your hand, and have a trigger you really like. You need to "try them on for a test drive", before you choose one. That's the beauty of having so many handguns today that are dependable: you can pick and choose. For instance, the Glock, M&P and Springfield XD (also known as an HS2000) are at their core, basically Glock derived designs. And all three are known to be good. But while mechanically nearly the same, they feel VERY different from each other in your hand. And that's a good thing: choice to get what fits your preferences the best. While I do like all three, I could rank how I prefer those three...but that would be useless to you, because your preference is likely different.
My advice is simple: you have to try them all out before you buy. They'll fit your hand differently. They'll "point" differently. The triggers, while generally mechanically the same...actually feel quite different from each other, because of pull distance, trigger shape, the springs' weight, the actual precise angle at which they "release" the striker...a tiny variation on any of those things can change how the trigger feels, and whether you'll like it, more than you'd think.
So when you go to the range, bring a box of 9mm, .40 and .45 with you, and if you see someone with a tupperware gun that you'd consider, ask them if they mind you taking a look, and maybe try it with your own ammo. Or, you could see if there are any "rental ranges" in your area, Alberta has many of them, and most seem to have a selection of somewhere between 6 and 10 different handguns to rent/try.