there is no weaker subclass because with the exception of maybe 1-2 specific perks here and there as well as sunbreaker armor, the classes are balanced. one could also say bladedancer, but thats a hit detection bug mostly. there is no stronger subclass either. just people more or less skilled with the game or their prefered subclass. its all about knowing how to use your abilities, gun play, and adapting playstyle to fit a subclasses strengths and weaknesses.