[Faceman]

Roleplayingwise I'd not use a two-handed on a swashbuckler but as he is a mage too that could be reconsidered in case of a staff or staffspear (which would suit a dual mage/thief quite nicely).
The Berserker/Cleric should definitely use a warhammer. Aside the fact that there is a nice one in the game all the other weapons just seem too small.