I own a number of 3rd gens.
My favorite is the 1066 my son gave me as a birthday present. Feel the S&W 10mm's are simply the finest 10mm pistols ever produced.
Saying that I open carry a well worn 6904 most of the time at work but alternate carrying it at times with ether my Shorty .40 or 4013TSW.
Love the 4013 and Shorty but in the end prefer the 9mm round to a .40. reason is that snappy recoil of the .40 or .357 sig to me is more uncomfortable than a 10mm with hot loads. 10mm is more a hard push than that super sharp snap with the .40/.357 sig and putting follow up shots on target I find easier and quicker with both a 10mm or 9mm than the .40's.
My favorite conceal carry pistol is my CS9.