I am a Diehard S & W man but, the best guns are.
Revolvers:
Smith 44 magnum.
Colt Python 357 Magnum.
Smith model 17/617 in 22 LR
Semi Auots with out a doubt
The John M. Browning model 1911 in which I favor.
Smith, Colt, the old model pre-lock Springfield Armory and the Dan Wesson Pointman. All in 45 ACP caliber.
I am of course assuming that you want our opinion and this is mine FWIW. Oh you didn't ask this but, the best rifle is a Winchester pre-64 model 70 in 30-06. Also JMHO FWIW.