Floors 2 and 3. So much poison and asphixiative resistance, too many things vulnerable to righteous. Since the player is still developing their characters, you'd have thought these themes would have happened further down, with the upper floors being more balanced. Also, mummies pack Corpus Burst. They cast it rarely and inaccurately perhaps but it is incongruent in its power considering how early on your encounter it and makes Floor 2 perhaps the most unintentionally dangerous floor in the game as they can kill the player in one hit. I have no actual suggestion as to what to do with this, but I thought I would mention this. (In a lot of ways, Floor 4 and 5 count as breathers to me after 2 and 3)
I usually try to stack melee for survivability and ammo conservation on those floors. Smithing is gold on those floors.
