No argument, brother.  (No spit, either!)
My choice is the original 45, and it's only a half-century older than the ACP.  I prefer wheel guns to those new-fangled autos, also. 
The original 45 Colt had its shorter cousin, too.  The longer one is still around, but until recently, nobody had manufactured guns or ammo for the 45 S&W in a century.  So ya just never know, huh?  
One of these years, I'll break down and buy one of those new-fangled 1911 thingies in 45 ACP.  Hey, maybe 2011 would be a good year for that.  The thing should have most of the kinks worked out by then, huh?