I haven't shot a whole lot of different pistols, I'm very inexperienced and also Canfailian; owning a pistol is extremely expensive and we have to register our guns, meaning if I buy one and don't like it, it's a pain in the ass to get rid of it.
I only started shooting last December and trigger time at ranges has been few and far between, but from what I remember, here's what I've shot so far:
Glock 17
Glock 22
H&K USP (.40 S&W)
S&W 1911
I actually appreciate all the engineering and considerations taken into the Glock; it's simplicity, ease of use and tear down, it's light weight, ruggedness and durability, but like many Glock critics I dislike the feel of the grip (checkering is blocky and rough) and grip angle. I still think it's too early for me to tell, I can't really afford a pistol now anyways, but after yesterday I'm strongly leaning towards a Glock.
Note: I'm thinking about building a target pistol, regular Canadian citizens can't get ATCs (CCWs).