Quote from iZara
Is there any area of Act 4 that is really fun and enjoyable? Act 4 needs more dungeons with more elite packs in it so you don't have to do the entire thing to get your NV stacks. Until then, we'll all just continue to avoid it.
This is my sentiment as well. While being fun the first time around I've really started to loathe Act4, which is a shame, really.