Ultimate home defence pistol?

I got a S&W Model 29 in .44 mag to clear a debt from my roommate back in 1990. Man it was huge: 10 5/8 barrel, rubber Pachmayer grips and 2 loaded speed loaders all in a case. I never fired it! I sold it ASAP as I didn't get any papers with it. I packed and shot a 1911 in the service until they brought in the M9 and we were all eager to turn in our .45 relics. The M9 shot so much easier, like shooting a .22 I have not fired a gun since I got out, hope I never have to. My boy has a SIG airsoft replica and a scoped pellet rifle, that's enough fun for me.