not being rude, but do some research yourself this info is very easily find on many articles or even videos in the web and the question itself doesnt make much sense, each benzo has its own specific target usage and pharmacological properties and the "largest dose / pill" part doesnt make any sense since different substances = different dosages (e.g 10mg of valium is equivalent to around 0.5mg of xanax)
also im assuming you arent considering oding on benzos because not only that would be a terrible idea it simply wont work and would fuck up your brain + the risk of developing tolerance + dependency
benzos are really different from opioids like morphine,oxy,etc in which you could do that comparison