imho:
SK: Ogre
Pally: Dwarf as tank / High Elf as group healer
Warrior: Ogre
Bard: Human (only bard race able to wear
robes)
Rogue: Human (best rogue race able to wear
robes)
Monk: Iksar
Shaman: Ogre solo / Iksar in group/raid (regen + only bard race able to wear
robes)
Wizard: Erudite
Magician: Erudite
Enchanter: High Elf (High base CHA)
Ranger: Human (only ranger race able to wear
robes)
Druid: Human (only druid race able to wear
robes)
Necro: Iksar
Cleric: High Elf (high base CHA/WIS +
robes!)