Easiest Dungeons/Paths for Rabid Gear
TA Up, HotW 1, CM 3.
All 3 is about the same but I feel that TA Up can be done faster.
What mosspit said. But depending on how much you skip, or “cheat” HoTW 1 becomes faster than TA up.
Also CM2 can be the fastest CM path, as well as one of, if not the easiest.