I have read Unne's, ah, opinion of four Black Belts and I disagree. I believe Ireckonbo has covered all the big reasons why it rocks so badly, so I won't do any repeating.

Besides, Unne's biased.

As for the best party, I would have to say

Fighter:Black Belt:White Mage:Black Mage

You get to use Xcalaber, freaking huge 10 hits, all the curative magic you like and nuke crap all over the place if the two guys in fronnt don't suit your fancy as death dealers.

As for the worst, if you exclude one person parties, I would say 4 thieves. Not because I'm just as biased as Unne, but also cause they just plain suck. Put everything anout the black belts downsides down here. They can cast Black Magic(which you can get with items anyway), and they sure can run away like mad, but I don't think thatrunning from Chaos would work too well, especially due to the fact that's he's sorta immortal, you know?