I'm sure most will disagree
I feel that scumming the four hells is easier than Abyss, because:
1) A bit less chance of being mutated to crap
2) Better XP, popping fiends
3) Easy to get out of when you want, you can sit on a stairway out
4) Unless you roll with an axe and even if you do, those splitting blobs in the Abyss are about as dangerous as anything in the game, since their damage and paralyze isn't blocked by MR - and most AOE magic to deal with them will attract a mob in a hurry, which can still get dangerous to almost anything. You could always roll with stasis.... see #1)
5) The Vestibule of hell is easy if you just dig yourself a hole
I agree that scumming Pan is silly because unless you're not going to get all 15 runes, you should be ready to get all the runes and win at the point you can survive Pan.