Haven't played D3 since before Necro, just got a PS4 and have been playing with my girlfriend. There's extensive info on late game and end game builds of varying purposes, and I look forward to one day having the legendaries/sets to make some of them happen, but there isn't a lot of information on the best way to get to that point... Farming that first set, etc. I've been running a very pet heavy build with corpse lance or revive, depending. Is there a better build? What's the best way to unlock the higher difficulties and start farming for that first set that will let you push further?
Edit: Also, which set should I prioritize? I hear the pet set is doing well, Inarius seems fun, and Pestilence also seems amazing?