I have a 7 1/2" barrel Italian SAA clone that has work well for many years.
If I were to look for another I'd get a Blackhawk or old model Vaquero.
.45 is a great caliber no mater what cartridge you use. There's a lot of case capacity in the .45 Colt that in modern guns can be a monster.
To be honest most of that capacity is wasted on me and a lot of other shooters. .45 S&W would probably work just as well for the many shooters.
I will say that every time I shoot that gun I get a stupid grin on my face from start to finish.