I lived in Northern AB until 1992, and Edmonton used to be the Mecca of handgunners. There used to be 3 dealers on the same block as P&D. It's still the best city to shop for any type of firearm. I bought a handgun from P&D a couple of years ago, and had good service. I bought it in the store, but had to have it shipped, because of the delay in licensing. I've dealt with Milarm, but not for a handgun. They have good service too, but not a big handgun dealer. Wild West is a bit quirky, to put it politely. The manager told me my 10 mm is a "weird" calibre. I don't quite get that comment. They seem to be focused on M&P type handguns. Wholesale Sports has 2 stores now. If you don't mind big box stores WS is okay.
One thing I like about Edmonton gun dealers, they seem to view buying a gun as a normal activity. Nobody looks at you like you're some sort of crazy person. Can't say the same about Calgary. Buying a gun there is almost like buying herpes medicine from a female pharmacist.