When you say nothing is wasted, don't forget the token drops:

1. Death Knight, Druid, Mage, Rogue
2. Paladin, Priest, Warlock
3. Hunter, Shaman, Warrior

Try and build your 10 box comp around these 3 token combinations if you want to gear quickly. If you're gonna go with one class for DPS like Shaman/Mage it might be best if you don't choose any other class from that token.