Alliance:
1. Human: Cologne/perfume
2. Gnome: Candy
3. Night elf: Pine/woodsy
4. Draenei: Ozone
5. Dwarf: Earth/metal
6. Worgen: Wet dog smell
Neutral:
7. Pandaren: like a farmer
Horde:
8.Orc: Sweat
9.Tauren: like a cow, duh!
10.Undead: Decay, like rotting meat
11.Troll: Intense BO
12.Goblin: BO, but not as intense as a Troll's
13.Blood elf: Patchouli, and way too much of it :/