For a good serviceable, defense, home protection, on and off duty I use a SIG SAUER. The department issued the double stack (12 rounds) SIG 226 in a .40 cal. I carry a single stack (8 rounds) SIG 239 off duty with a .357-Sig round. The Texas highway patrol uses the SIG SAUER with the .357-Sig. The .357-SIG will penetrate a windhield with no problem.
As for the safety, the SIG SAUER has a de-cocker. During transition to "autoloaders" years ago my partner had a Smith & Wesson. During the problem/clearing class i kept messing him up by putting it on "safe". It took to long to find the problem and correct it. In my business I do not have the time. I went with SIG SAUER's. Slightly heavy first pull, to make sure you want to, and a short second or more. If no more threat, then just drop the hammer with the de-cocker and the SIG SAUER is ready to go again if something pops up.
Do not forget night sights!!!!!
John
Dallas
UTPD