I'm at the early stages of investigation of my next firearm purchase. I'm narrowed down to 2. They are not the same caliber, and are apples and oranges in size. I carry compact and full size firearms, so size isn't a factor for me. My choices are the Glock 20 Gen 4 ( 10mm). And Springfield XD-S in .45. I have fired both and am very impressed equally. Ballisticly we all know the power of the 45, but in my research I've come to find the 10mm more devastating. I am a reloader who currently loads 45, 9, 223, and 12 gauge. To me having another caliber to load is icing on the cake. Not to mention 10mm is not quite as popular as the 45. I still have at least a few months before I make my purchase. I'm looking for honest opinions. Not looking to start a brand war. Just some fun informative bantor. Thanks much!!