My LCP...after owning four Kel-Tecs, I finally own a mouse gun that actually works. And I mean worked out of the box, any ammo, any mag, any time, any place. No excuses, no regrets.
My S&W M25-13. I had gotten rid of all my ILS S&Ws several years ago and swore I'd only go with P&R S&Ws from that point on. But I'm a sucker for .45LC (at one point I had three), the prior owner had gutted the ILS and the price was right. It's currently my only .45 LC revolver. It is probably my favorite revolver (shhhh...don't let the P&Rs hear me), definitely the one I carry the most (winter time only, due to it's size) and definitely the one I shoot the most. It's also probably the most fun to shoot, although my 4" M57 gives it a run for it's money.