I am interested in the advantages and disadvantages of combining a mage school (Mage, Conjurer, Sorcerer) with each of the three arcane melee schools (Battlemage, KNoC, and Chaos Warrior).

Also, is such a combinationas effective for solo or group playthan a priest combination such as Healer/Spiritist or Healer/Shaman?

Please provide examples if possible.