Any firearm I own is my favorite. I have a Springfield XD45, H&K USP 45, Beretta 96 FS, and a Kimber Ultra Compact II.

If I had to choose a favorite, it's a toss up between my Kimber and the H&K. The Kimber is nice compact officers 1911 with 7+1 capacity. When out and about, this is usually what I carry. The H&K is just a beast and the recoil is not much more than shooting a .40.