I really enjoyed this discussion.  I think the challenge is a great idea. 

I'm wondering, for those who meditate, what their favorite style is.  I have a crazy busy mind and know many others that do as well so what I like to do is pick something...it might be a photo or a candle or music...and focus on it.  I just "notice" all the different things about the object or sound.  When my mind starts to wander, I just acknowledge the thought and then return to my object or sound.  I have found this to be the best way to quiet my mind and it has worked for many others I know as well.  How about you?