What is the busiest Olive Garden?

I heard from Disney mgr I used to work with that cosmic rays starlight lounge and Pecos Bills, both in magic kingdom at walt Disney world are the number 2 & 3 respectively busiest restaurants in the world behind the McDonalds in Moscow Russia. I can't find the exact source myself just yet but this ranking was from a couple years ago. I expect this hasn't changed as of yet. This would make them the two busiest in the U.S.