A few beat me to it; the OP wants to transition from a .357 S&W 19 to an auto.
Simplicity of skill transfer would favor the Glock. Personally, I prefer and carry 1911s. I have owned Glocks, but prefer the ergonomics and slimness of the 1911.
As usual, my answer would be to try to handle and, if possible, shoot each in order to make an informed decision.