[Tancred]

I picked the first NPCs I came across [img]smile.gif[/img] Oddly, I unwittingly stumbled on a terrifyingly powerful combination, in my view.

Tancred, Cavalier
Minsc
Jahiera
Anomen
Nalia
Imoen/Yoshimo

Fairly standard. However, standing back and looking at this, this party can muster -

4 powerful fighters; Tancred and Minsc do well with their double-handed swords, and Jahiera and Anomen - as a fighter/cleric and a fighter/druid - offer excellent support with shields and hand weapons.
5 missile weapons; Minsc's longbow, Jahiera and Anomen's slings, Nalia and Imoen's shortbows. If nothing else Tancred hangs around in front and intercepts enemy charges.
4 healers; this is the REAL lovely. With a paladin, ranger, druid and cleric in the team, this party can literally put itself back together from devastating losses in a few turns. This allows us to save on healing potions for when we really need them.
6(!) spellcasters. Yehaa! The amount of defensive and enhancing spells hese guys can kick out is amazing, and the 4 main spellusers can combine to lay waste to almost anything with the Ranger and Paladin holding off the foe.
2 thieves - although neither Imoen or Nalia have continuing thief levels, I tended to give Nalia all the 'wizard' gear and Imoen all the 'thief' gear. Equipped well, Imoen passes as a capable thief - good enough to find most traps, able to pick most locks.
3 stealth agents - Minsc, Nalia and Imoen work well as an 'infiltration' squad, and many's the time a foe has charged the other three only to be smashed from the flank by magic and bowfire. Nalia's stealth ability is a bit erratic, but this is easily overcome by use of various invisibility spells/items...

All in all, a flexible squad that can take just about anything and act well as a team.