Favorite rifle would be my model 7 in 358 Hoosier. Handgun would be a S&W 629 with a 4" barrel. Shotgun would be a Remington 1187 in 12ga. If I had to get rid of all the others I would keep the above three. If I was to add a fourth to that it would be one of my 22s. Most likely it would be my Ruger Mark 22. It is a fun gun to shoot and is very accurate.
my favorite rifle is my winchester model 67-22 that my dad gave me last summer! single shot bolt action that i could sit and shoot all day. wife loves it too. favorite handgun isnt too hard as i only have 2 but its me M&P 40 with the polymer apex trigger kit. I love it. hopefully in the next year i can swing a stainless pretty 1911 to add to my collection.
Probably my old MAC-11, it's only in .380 but it's small, easy to hold, point, and reload. It gets rid of a 32 round mag in about a second and I have 8 mags in two belt pouches. Best thing made to shoot your way out of a building with, they don't call them "room brooms" for nothing.