Semiauto: CZ-75BD- I have the most ammo stored up for it, the most mags for it, and the best caliber of my semi-auto guns that I am comfortable with. I just got a 1911, but for now, the CZ-75BD wins. Honorable Mention: My makarov gets honorable mention due to it's concealability and simplicity- 27 total parts means easy repairs if needed.
Revolver: Model 19- With a 4" barrel, it definitely can be used for either carry or nightstand. It's balanced, comfortable, and great to shoot. It beats out the 6" Security Six in large part due to the barrel length, espcially since I need something for my wife to carry as well. Honorable Mention: Ruger Security Six, for reliability.