Which one(s) of you replied that answer to this survey? It's on slide 19 of this link.
http://www.businessinsider.com/22-maps-that-show-the-deepest-linguistic-conflicts-in-america-2013-6
I like the "y'all" one... Not because we use it a lot, but because that word was not started as a lazy conjunction of "you and all" like most people think...
It was born from the old Scottish phrase "ye aw," basically the same meaning.
You're welcome for the history lesson... Tip your waitress.