If you had to assign each race with a single class, which would you choose?

[Lodreh]

Death Knight - Human / Forsaken
Demon Hunter - Night Elf / Blood Elf
Druid - Worgen / Highmountain
Hunter - Dwarf / Vulpera
Mage - Kul Tiran / Nightborne
Monk - Pandaren (A/H)
Paladin - Draenei / Tauren
Priest - Void Elf / Zandalari
Rogue - Mechagnome / Goblin
Shaman - Dark Iron / Troll
Warlock - Gnome / Orc
Warrior - Lightforged / Mag'har

[Aphrel]

Aight lets test this out:

Human: deathknights because they dont fit anywhere else.
Offsprings of gregor clegane: Warrior
NE: Demonhunters
Dwarf: hunter
Dwarf but sooty and with soon to have lung cancer: Shammys..
Gnome: Warlock
Gnomes from special olympics: they dont fit any class. Lets do this again when we get tinker class.
Dranei: Priest
Draneis with more fabolus clothing: Paladin
Elves that needs more sun: Mage
Pandas: Monk
Wolfs: Druid

[McNeil]

Horde:

Orc - Warrior
Undead - Warlock
Tauren - Shaman
Troll - Hunter
Blood elf - Mage
Goblin - Rogue
Highmountain Tauren - Hunter (Survival)
Nightborne - Mage
Mag'har orc - Shaman
Zandalari troll - Druid
Vulpera - Rogue

Alliance:

Human - Death knight
Dwarf - Hunter
Gnome - Mage
Night elf - Druid/Demon hunter
Draenei - Priest
Worgen - Rogue (by default, because this is the only class that can stealth and worgen should be able to do so by themselves)
Lightforged draenei - Paladin
Void elf - Priest (Shadow)
Dark iron dwarf - Warrior
Kul'Tiran - Shaman
Mechagnome - Dunno actually.... maybe hunter because they like their guns and mechanical pets

[guisadop]

Human: paladin
Dwarf: warrior
Gnome: not really sure!
Night Elf: druid
Orc: warlock
Tauren: shaman
Troll: hunter
Undead: rogue