This my kind of thread! I love to think about this!
1) a Ruger Vaquero SA (would love to have the 9mm/.357 covertible model) they stopped making those some time ago
2) a S&W Victory
3) a 3" S&W revolver of some sort (don't have any revolver in 3" barrel length)
4) a CZ scorpion evo 9mm