I love all of my rimfire rifles and can't choose just one as my favorite. Each one has a specific purpose for me. For precision work, I love my Savage MkII BTVLSS. I also love my AR22 rifle for quick and accurate shooting. I also love my Marlin Model 99M1 that has the original rear sight still. And the big surprise in accuracy and fun is my old Romanian Model 69 training rifle, it is crudely built and rough as a cob but is shoots well. And last what's not to like about my Kel-Tec CMR30, light 22WMR with 30 round magazines.
I'm the same way with my rimfire handguns too. Each has its place and purpose. For fun shooting, I love my H&R Model 949. For training purposes, it's hard to beat my Glock G44 and Taurus 942. For more accurate shooting; I have my Ruger MkII, S&W 22A, and my Kel-Tec CP33. The CP33 and S&W 22A are more accurate than my Ruger. Out of all my 22lr handguns, I find myself shooting the Glock G44 and Kel-Tec CP33 the most. For 22WMR, I love the Kel-Tec PRM30 especially since it pairs with the CMR30 and uses the same magazines.