I have never understood the love for DA/SA. Perhaps some find more comfort with a decocker, but I dislike the DA/SA transition and have never grown to love my Sig. To each their own, I guess.
I have never understood the love for DA/SA.
Depends on what you're doing. For people management with a handgun, it is IMO nearly ideal.
http://www.luckygunner.com/lounge/why-switched-double-action/ can give you some more reasons.