I have 2 of the 3 you have listed.
My Dlask TUF22 is a great gun. I run it with a KIDD bolt, Timney Trigger, IBI barrel, in an Oryx chassis is shoot lights out. My main complaint (and this is more about the 10/22 rather than the Dlask) is trying to get a second crack on a light strike is problematic in competition. Other than that, super happy with the build.
My CZ 457 20" MTR is also a fantastic gun. My main gripes with CZ have always been super minuscule and all personal preference. I've never been a fan of dovetails for a scope base, and that was always my main stumbling block with the CZ rifles. I run an MDT 20 MOA base on it and its solid combo; I always worry about the dovetail slipping for some unknown reason. Also, mine came with the extractor and cartridge guides installed reverse of what they should be in, and in the beginning, I was having strange extraction issues, but once I got that sorted, it's been great.
My CZ has become my go-to since it's a lot closer to my precision bolt guns, but both are solid choices!