My first owned was a SIG P220 Elite.
My first fired was a glock 9mm (sucked) followed up by .357 Mag out of a S&W 686, then onto a Sig 1911'ish gun in 45 and a blackhawk in .44Mag all in one day at a range in Virginia. haven't looked back.
Shotguns rule, rifles are cool, but handguns hold a special place in my heart.