although english is not my 1st language, I play with an english client, because I like Ironforge to be Ironforge (when you play with a german client pretty much everything is translated). Besides imho the voices of the orcs and tauren sound a lot better in english.
But there are a few cases, where the german translation is actually funnier/better/more accurate than the original.
My favourite: "Ritual of Refreshment" translates into "Tischlein deck Dich"
"Tischlein deck Dich" refers to a fairy tale by the Brothers Grimm.
Do you know any spells, npc names or whatever that sound funnier in another language?