For me, there are two. First, the 30P-1. It is my "go to" silencer for precision and long-range shooting on the .308, .260 Rem, and 7mm RM. It works great and is versatile. Second, the 22S-1. I like this little suppressor because it doesn't add a lot of weight to my Pac-Lite Ruger 22/45 pistol, and I can plink all day without additional hearing protection (using subsonic ammo). What's yours?