I'm currently at the lighthouse and I tear everything up with my blade dancer, barbarian, freemage and rune priest. With that said I think I'm gonna reroll as I have come up with a pretty much unbeatable team.
Bladedancer with daggers, DW, warfare and dodge = 7 hits per turn, warfare skills will hit pretty much always thanks to the number of hits
Crusader with Light, Swords, Shield, Mysticism = primary healer and celestial armour, paladin skill will grant +dps and will be insane on blade dancer with 7 hits
Druid with earth, water, mysticism, foci = water will reduce enemies number of attacks (also works on bosses), earth will have regen and number of other good skills like stone skin
Freemage with dark, air, mysticism, foci = dark has agony that gives dps to each hit so this combined to paladin's skill will make blade dancer hit like a truck, shadow cloak, air has very good aoe, buffs to perception etc.
Bladedancer will pump destiny, might and some vitality, Crusader will have some spirit, some vitality, might and magic (maybe 1/1/1/1? until you have decent enough vit and spirit then just magic and might),
Druid and Freemage raise spirit to around 25 first, then magic. Mysticism brings the mana up pretty quickly. Some vitality as needed.