I could literally just watch the pets kill everything in Act 1 with the focus in crowd control (good rolls on almost all gear) and average armor/resists. They would permadisable everything and kill it. On Act 2, even with over 4.5k armor and 400-500 resists, they would still die insanely fast.
Now with the proc rates fixed (and I said fixed because I'm sure they weren't intended, I still think they were lowered a tad too much for Dogs), and the improved pets, I can do Act 2 pretty well with almost 0 deaths, and pets survive through most champ packs, except when I blow them with Sacrifice.
I still miss seeing pets almost perma-disable monsters wish there was a way to bring it back (even if it meant sacrifice dmg or survivability somewhere else), specially since some of the disables are pretty weak (immobilize, chill, slow, knockback).