Obviously, these are my opinions. However, I currently own or have owned all the handguns that I speak of.
Dan Wesson; excellent quality, Ed Brown parts, underpriced for value and now has CZ customer service
Colt: The Prancing Horse had some QC issues, but they're long gone and it's LMB's anointed manufacturer.
Les Baer: Nothing to say except that they are generally just awesome
Colt: The old ones.
They're so smooth that you could accidentally shoot off your pinkie toe and not care.
Smith & Wesson: The old ones
. See Colt.
Ruger: Not the smoothest triggers, not as graceful looking as a Colt or S&W, but built like tanks, dependable to a fault and like a Timex, they just keep on ticking.