So I've been playing through as a two character party, and am getting my butt handed to me on a nice avernite platter.
I remember in previous games (A3, Nethergate etc.) a singleton's power grew exponentially. Slow at first, but then continually faster until the end of the game you had a /really/ good character.
The logic of this seems simple: More party == more ways to divide xp.
Did A2 NOT divide xp amongst party members? Or am I just not doing enough of the side quests?