The real question in my opinion is: what are the *worst* ability scores for *everyone * in your party to have dumped?#6 - Str. �Send to Camp� makes carry capacity irrelevant, Fly and similar abilities make jump capabilities irrelevant, and there are *Lots* of other options for damage. If I had to make a party where no one had a high score in one ability, it would definitely be Str.
You forgot the other biggie: potions of hill giant strength. A bit of gold fixes your strength problem for a character or two easy. That's what would make strength a very strong candidate from a min/max standpoint.
Int would be the other strong contender. Unless you're playing a wizzy, you're most likely just going from a +1 to a -1 stat bonus at most. And it is quite likely, that at some point in chapter 1, suddenly, somehow, one character suddenly has a +3 bonus instead.
