I primarily carry a Glock 19. Not my favorite, but somehow it finds it way onto my belt.

Others in limited rotation: CZ P01, S&W 642(especially in a coat pocket when my primary is too deep under layers of clothing).

I like pistols so I also have a CZ 40B, Colt Series '70 1911, Sig P6(for my girlfriend), and an HK P7.