Glock 40. I already have a G20. The Glock is going to have less felt recoil with full power loads than a 1911 in 10mm, or even, in my experience, some 1911s in .45 ACP. The Glock is lighter, has better capacity, and will be easier to service or modify. It also has the ability to quickly mount a miniature red dot or reflex with the MOS system, and the ability to mount a white light or laser as your needs require. It is also probably going to be several hundred dollars cheaper than the 1911s.