I said it doesn't have the sound, not that it wasn't descriptive.  IMO, "Triple Double" has an awkward rhythm and strange juxtaposition of consonants - linguistically, again JMO, it sounds odd.  And, again, it's very close to an existing trademark. Not ideal.  You disagree, which is your right.  Yes, it describes the burger, but precise descriptions aren't always the ideal marketing tool.  Otherwise Big Macs would be called "Double Patty Triple Bun and Some Cheese".