There was a thread like this a few years ago, but I don't think everyone understood what the poster was trying to ask. A lot of people were making jokes.
Anyways, if someone came up to you, and asked what religion you were apart of, what would you say?
Mormon,
Christian,
Latter-day Saint/LDS, or
something crazy you like to call yourself
Since I am Catholic, I tell my friends I am Catholic. However, when I am baptized into the LDS Church, I will most likely say Mormon, or Latter-day Saint.