A better question: why is litecoin better than monero?
isn't dash better than monero, they shares the same thing, but dash is a more suited name for a coin than monero can even dream about
monero problem is its name really nothing else
and litecoin isn't better than monero, people are more attached to it for emotional reasons...
monero is "money" or "cash" in Esperanto.
dash is short for "digital cash"
Which is better? I'd choose "monero" over "digital cash"