The Energon Pub

I am trying to make up my freaking mind about which version of the Movie DVD to get, and I can't seem to remember all of the versions. So could someone please list all of the versions/their 'special features'/'exclusives'?

I think all the special features are the same except for Wal Mart, they have an animated prequel. Target get's a Transforming DVD case and Best Buy gets two Robot Heroes figures...personally I'm buying all three.