I finally decided to play:
Glock 35 with a chopped frame. Good for carry, range use, HD/SD, pretty much anything. I mean come on, Glock even calls it the "Practical/Tactical" model. That right there says it all
Ideally, you should already have this weapon in your possession. Since that's my mindset, I'd say my Springer Champion would win the battle. I enjoy and own both 1911's and Glocks, but the 4" barrel is easier to hide on my frame than the 5" of my G21.
If I had any weapon made on the market??? I truly am not sure what I'd choose! LoL