Believe me, skip the quests, only do Defias Brotherhood for the blue reward and People's Militia for the tank mace and the wands.

For nostalgia reasons I did all the quests in westfall with a 5 toon group. That's 40 gnoll paws, 40 sacks of oats, 40 goretusk livers and 15 snouts, 15 stringy vulture meat, 15 murloc eyes, 15 okra, 25 flasks of oil, 25 hops, and 75 bandanas. It will drive you to your wits end when one toon picked up 7 okra and you didn't notice for ages because EMA shows 'done' and you are wondering why the other toon is still on 1/3.

At the end I was only level 15 so I'm not convinced it was so great for the XP. It was great for cooking however, and if you like 4-slot bags.