I would say that you would be happier with the PPS vs. the Glock. The PPS is a much more refined weapon build wise compared to my glocks. I own both. The PPS holds more rounds as well. And the PPS shoots very accurately like a bigger gun. All things considered, the PPS is a single stack Glock and it was one of the first ones on the block as well.
While I have not seen or shot the Glock 43. I have seen and shot the 42. And the 43 looks like a 9mm version of the 42. I would still pick my PPS over any Glock. And yes I own a few Glocks!!!!