My favorite is not yet specifically available.
After 35 years of shooting and carrying handguns, I am most pleased with the 1911 format and operation (cocked-and-locked carry; crisp SA trigger; etc.), but I prefer 9mm to .45 for a variety of reasons. Yes, 9mm 1911s are available, and I own quite a number of them, but I also want higher capacity than what is offered by a singe-stack mag. Yes, double-stack 9mm 1911s are available, but are priced higher than I prefer. I can buy one if I wished; I just don't wish to pay the price.
So, in summary, my favorite handgun would be a lightweight, 9mm 1911 with a double-stack magazine. Cheap.
In the absence of that specific gun, my solution has been to find the format closest to the 1911 in double-stack 9mm, reasonably priced, and that gun is represented by a number of CZ products based on the model 75 design.
My current carry and shooting gun is the CZ P-07 Duty, and it comes as close to my favorite gun as currently possible. I would like a more prominent manual safety so I can "ride" the safety with my strong thumb, but maybe that will come later as an option.
Ruger's SR9 also comes close, but its manual safety needs some work as well.
The Taurus products are out there. STI has a plastic gun that I have not tried that is a possibility.
But eventually, my favorite gun will be available. Until then, I will keep shooting and enjoy the guns I have.
Boarhunter