Ok, I'll bite. I generally played as a fighter/paladin, too. In both games, I liked having two melee fighters, one ranged fighter, one rogue, one cleric, one wizard (basically one of each class in Might & Magic 1-2: fighter, paladin, archer, thief, cleric, sorcerer).
In BG1, I liked Kagain as a tank, Coran as as the archer, Imoen as the thief, Branwen for cleric (higher strength meant she could wear plate armor), Edwin for mage. I generally didn't dual-class Imoen to wizard since I wanted to get her find traps and pick lock skills high, but I'll try it when I pick up the game again.
In BG2, I liked Keldron on the front line (Dispel Magic and Carsomyr winning combo), Mazzy for archer, Yoshimo for the thief slot (then settling for Imoen), Viconia as cleric, Edwin and Imoen as mages.
I don't think I've ever used these same exact parties, since I generally played with a good/netural or netural/evil party.