Wondered when this would happen.
Have both, like both but for different reasons.
Glock: parts, mags are everywhere, easy too maintain at the user level, proven track record and the 22 is probably the most popular piece in LEO land, therefore mags are abundant. Mine is a gen 4 model22 and the new spring set up does seem to mitigate the snap some.
M&P: also in .40 excellent grip, a bit more heavy duty and built for the .40.
Trigger wise the Glock wins, accuracy, flip a coin but I find the Glock a bit more accurate do to a better trigger. Mags I find the M&P mag easier to load and seems more "roomy" than the G if that means anything.
Which one sits on my nightstand? SW99 .40! ��
Dale

__________________
"Long live the S&W 3rd. Gen.!"