i know glocks are very reliable,but uncomortable
the xd is good,cap. 12rds
xdm 3.8 a new bread,not to sure about the 3.8 barrells accuracy
and the operator.it 7+1 and im good with 1911's but i have had 1911's fail moreso than any other sidearm.
We had SIG 226 357's for 10 years or so and just recently switched to 40 S&W. The SIG is big and heavy but I liked it. Not for anyone with a smaller hand though. Also I do not miss the 7lb trigger pull of the first shot. I will say the new 40 is lighter, holds more rounds, and has some neat features. Love the fact you can see the round in the top of the slide when chambered. Also has three sizes of grip that can be swapped in a sec.
On a side note I have a level two holster and detective belt style holder if anyone needs them for a SIG.
if sigs are an option, I would shoot one before discounting it.
93 Lightning t-trim @15psi a/a intercooled,Windsor sr heads, tfsr intake, 75mm tb,full fuel sys 72lb, Fast xfi, be trans controller,built E4OD 2800 stall,1-3/4 longtubes 3" exhuast Auburn pro 87 Lx coupe (in progress) 393 stroker coated pistons/bearings built 4r70w.
I own all of the guns on your list and would be happy to let you try them out at the range. My range is in Carrollton and I have access to it 7 days a week during daylight hours. Do you live in the DFW area?
I'm going to chime in like its already been said above. Shoot as many of them as you can, then make your decision. I'm a big fan of the XDs. I have carried both the XD .45 and 1911 on Duty. My current duty weapon in a Springfield TRP Operator. Do you not get a choice of a full size 1911? Just my .2cents more rounds does not make a better weapon.