OK, you're giving Toronto as your location. Where are you going to be shooting? What sort of shooting are you going to be doing?
Or are you just wanting to get a handgun for the sake of getting a handgun?
I would suggest that you make contact and visit the club where you are going to be shooting and talk to the folks there. It is entirely possible that you will be invited to try different pistols. I would suggest that you try, or at least handle, as many pistols as possible before purchasing. Avoid investing in something that just doesn't suit you.
G17s and 1911s are very different pistols, different controls, weight, handling characteristics. You might even consider optic versus iron sights. Good to try both.