Even if you set the theatrical versions aside in their own timeline, that’s still three versions that are in Legends.
Hey, Ender! Welcome back. Glad to see you here again.
Well, the 2004 and 2011 versions are very similar. The 97 versions are kind of the oddball, since they precede the prequels, but they were basically superceded by the DVD versions, since most of the 2004 changes were to establish consistency with the PT.