A Brief Welcome to the Universe offers a breathtaking tour of the cosmos, from planets, …
They are extremely low in luminosity, so we call them white dwarfs. Some people in the UK (especially, perhaps, J.R.R. Tolkien) might prefer to write "dwarves." But in America we form the plural of dwarf as "dwarfs." Astrophysicists are not alone in their preference. Disney's 1937 film is "Snow White and the Seven Dwarfs," not "Seven Dwarves."
— A Brief Welcome to the Universe by Neil deGrasse Tyson, J. Richard Gott, Michael Strauss (Page 38)
This is the comment that gets me thrown out of the pub for smashing a pint glass into his shit-eating grin. Picking a dwarf fight is completely orthogonal to the discussion.