Myself haveing most every charactor class to 90 in EQ1 I would def have a slower either shaman (also good for buffs) or Enchanter (haste mana regen auras etc).

That said, Pally is just as good as a Sk and can heal grp~, as for Merc i would'nt use cleric, wiz, wiz/ I'd go Cleric, Dps,Dps. keeping them on Burn.