In addition to the Glock and the aforementioned S&W M&P, Springfield Armory also makes the polymer framed XD series. I am a big Glock fan, but I also consider other applications depending on what I am buying. As an example, I wanted a compact or subcompact 9mm for EDC. I looked at the Glock 26, the S&W M&P compact and the XD9 subcompact. My local gun store had all three, and I thought I wanted the Glock 26, but the XD subcompact fit my hand better than the others. I bought the XD subcompact.
There are no reliability issues with a Glock, S&W or Springfield Armory, but they do have different trigger pulls. Keep the Ruger if you can and go shoot some rentals to decide. Man, that sounds like fun!