helium3 said:
It seems like there's at least two kinds of balance, balance between the members of a party and balance between your average part and the monsters that a party of that level should be fighting. Mostly we've been hearing about intra-part balance and not so much about the other kind.
Did we not? I thought the discussion about Minions, Regular, Elite and Solo monsters, monster level did touch the balance between party and monster.
The base concept seems to be that a party of level X can stand best against monsters of level X, whose XP total an amount f(X). (But you can use higher and lower level monsters, provided you don't exceed the total XP "allowed". If you use less, well, don't be surprised if the combat becomes a cake walk.

)
Reducing the importance of magical items (less Christmas Tree) also seems to indicate that party vs monster balance doesn't require a lot (if any) items. (I still haven't figured out if they actually create the balance with _no_ magic items in a party, or if there is still a "wealth per level" mechanic in place that says how much items a party should have to meet the expected effectiveness)
I think both balances were already a big focus in D&D 3, but:
- magic items were definitely a requirement for party - monster balance
- inter-party balance was seen over all levels of play, instead of each individual level (low level spellcasters weaker than low-level fighters, but high level spellcasters stronger than high level fighters)
- party and monster balance assumed approximately 4 encounters of party level per day.
I think they are trying to "micromanage" the balance more in 4th edition, so that at each level, against each type of monster setup, at every "time of the day", characters and monsters (or rather: monster encounters) are in balance.