Even without the resilience, recovery,mobility nodes the D1's sub-classes had more customisation.Like on the Sunbreaker,I had about 5 builds like melting point focused,orb-generation focused,ad clearing focused etc etc.I mean I could do all those things with one build but just changing a few affected it differently,like using Standing in sunspot gives more time on your super perk,perk allowing you through more hammers and enemies explodes when killed on the shanks part on Aksis Phase 1 allowed me to create a lot of orbs and kill a lot of shanks.See,I liked these kinds of things maxing your efficiency at doing one thing by selecting nodes on the sub-classes but with D2's sub-classes customisation,there is nothing like that,you either chose one perk bundle or the other you can't chose individual ones to max efficiency for one thing,hence why I say D2's got way less sub-class customisation