Dungeons that are worth for transmog farming

Blackrock Depths
Maraudon
Razorfen Kraul
Diremaul North
Diremaul West
Strathholme Live
Zul’farrak
Dire Maul East
Lower Blackrock Spire
Blackfathom Deeps
Razorfen Downs
Sunken Temple
Gnomeregan
Uldaman
Scarlet Monastery
The Stockades
Stratholme Dead Side
Shadowfang Keep
Scarlet Halls
Scholomance
Wailing Caverns