Can’t improve on the Help
https://help.maxon.net/r21/us/index.html#6291
but the start of the Sampling portion is a pretty good short version.
“Use Sampling to control how the texture’s pixels are interpolated. MIP and SAT are the best choices for animation or for objects in still pictures that extend towards the horizon, such as floors.
Square, Alias 1, Alias 2 and Alias 3 should, in general, be used for still pictures only — they generate crisp, sharp textures, but are too sharp for animation and if animated will be likely to flicker. MIP and SAT, on the other hand, blur the texture slightly to allow flicker-free animation.”