I have multiple guns that I like for different purposes ... well into double digits, but focusing on guns that I spend the most time with and/or view as the most valuable for defensive purposes, as I assume that's the primary focus for the question:
Kimber Solo - my EDC. I like it because it disappears in a pocket, is 9mm, the design doesnt snag on fabric, the sights are decent/I am fairly accurate with it, and it's metal. It also was (IMO) a very good-looking gun when I got it, but the frame finish hasn't held up well.
Glock 19 Gen 4 - spends a lot of time in my car console. I like it because it's very capable and reliable, offers more capacity than the Solo, but is still fairly compact.
SIG P226 - primary home defense handgun. I can be very accurate with this gun at self-defense ranges, even relatively long ranges. Good capacity and I like the controls. Feels solid and high-quality. Runs like a top with any ammunition I have tried in it.
Long guns:
Iver Johnson M1 Carbine - I may be the only person on this board who will say that an Iver Johnson product is a primary home defense gun, but, it's reliable, handy, powerful enough but not to the point that I think overpenetration is a big concern, good capacity.
AR-15 (one I built, mainly using Aero parts) - A bit more powerful than the M1 Carbine and with with more flexibility for how to to set it up (light, laser etc).
Remington 870 Police Magnum - works great, smooth, high-quality. Mine was made in 1989. Not sure I'd have faith in a new one.
I will end it there, but I haven't even mentioned most of my actual favorites as far as collectibles or what I enjoy the most at the range. WWII stuff, skeet gun, trapdoor etc.
To me, it's not really about liking or disliking a gun. It's about liking or disliking a gun for a particular use.