revolvers are inhearently accurate and durable, almost no chance for a misfire (which could result in the gun blowing up when you fire again and theres a slug stuck) or a other malfunction and cant jam.
i still say if you go revolver 357 is king because its a very very deadly round, very accurate and can shoot 38spls too. 5in barrel is a good size. .44 mag is overkill and you might kill the guy behind the guy you shot, and the .45lc has very expesive rounds if you dont reload yourself (like me)
the best weapon is one you never need to use, someone pulls a SA brick on you, yeah your probly going to wet yourself, but pull out a glimmering stainless steel magnum and your going to wet yourself, crap yourself and probly run away. they are just scary, plus they are ALOT louder than a SA so a warning round is going to be alot more frieghtening (also revolvers make fireballs, also scary)
all your choices are good, you will get a good gun, but IF you where to get a revolver opt for a 357 magnum.