Personally, I generally go with what I call 3+1 approach; 3 characters with high dps and 1 that can add some, 3 characters that have armour (3 heavy, 1 light) and 1 squishy, 3 high resist characters with 1 potion addict, For dps output, I generally use 2 melee str characters and a caster with a dex ...