I've done 4 lvl 19 Alliance twinks, and do the exact same thing on every one of them. Thought I would like to share the info.
1) Loot the Glowing Shard from the Murloc Boss in Wailing Caverns- end series reward are cloth shoulders with stamina/intellect. I know they aren't mail, but they have stamina, and I am pretty sure these are the ONLY sub 20 shoulders with stats.
2) At level 14 you can get a quest for the head of Van Cleef. The reward being a pimp blue item, staff/legs/chest IIRC.
3) When you kill VC, loot the Quest starting note on him. At level 15 or 16 you can begin that quest. Lots of running around, including a Stockades run. You end up getting a blue ring with +3/4 to all stats.
Those are the three BoP quest series you should ALWAYS do, this will also get you a few levels due to XP, so once you hit 14, do these immediately before grinding XP for higher levels.
Good luck!