[ryu]

i suggest samurai, fighter or valkyrie, monk, bard, psionic and priest
samurai is good in criticals and is pretty nice user of wizardry spells; (s)he is also never afraid; fighter and valkyrie are strong and deal lots of plain damage, also have many hit points, so you want it in front to absorb damage; monk ils also nice 'criticalist', and can use psionic spells quite effectively; bard is nice b/c (s)he can use instruments since early game, and it is fun to 'surprise sleeping opponents'; it is easy to develop as it mostly needs locks/traps, pickpocketing and music for skills; psionic is immune to attempts to affect their state of mind and are strong offensive spellcasters (though many preffer mage); and - priest.. nice protective spells and good resistances;
good luck