Finally the original IWD content is over. Have started it in HoF mode with 1 lvl heroes and for my first playthrough o_O
With this party
Paladin (longsword, axe, GREAT saves - main tank)
Ranger 3/Cleric X (mace, hammer - second tank)
Fighter 6/Druid X (sling, scimitar - shooter/third tank)
Fighter - Thieve (bow (although crossbow would be better), short sword - archer/another off tank)
Fighter 3/Mage X Conjurer (crossbow, dagger - good shooter/offensive caster)
Bard (sling - buffer/support with songs)
Every one of them was vital at least once, maybe except for paladin, which could be a dwarven fighter as well.
Now here are some impressions of the game difficulty and balance:
(possibly spoilers)
Orc caves were damn hard for low lvl party, at least there was an opportunity to leave the cave and rest.
Goblins on the Eastheaven-Kuldahar road were the first enemies to fight till the last breath in one attepmt, wery hard at that point. Besides, from this one i have never remembered this leave battle/rest tactic again.
Valley of Shadows, Temple - OK difficulty, despite that giants that had beaten my MT in seconds. Many thanks to chromatic orb and druid elementals/bears.
Dragon's Eye (?), well, trolls and lizardmen - DAMN HELL. The Yxunomei battle seemed like an end of my adventures. It took all the potions and magic ammunition to make it, and some extra 6k to resurrect my cleric.
Surpisingly after that
Severed hand, Upper Dorn, Wyvern smth - really easy. Usually i didn't even bother myself with buffing and summoning. Well, except for Protection from evil'10, Courage, Hope and some elementals.
Lower Dorn - again OK overall difficulty. A bit of this and a bit of that, umberhulks haven't impressed me at all though.
Final battle - well, some good potions, everyone except bard switched to melee and, heh, mass invisibility have made a deal.
I'm yet to play HoW, but so far the hardest battle for me in all the 2nd ed Infinity Engine games is that one with the Demon at the end of the TotSC expansion of BG1.