[Blerg]

The dual timeline is the one that makes the most sense from what my own opinion, as it allows for the random differences between some games for the shape of Hyrule. Basically if a world looks vaguely like OOT it's from the "everything is good" past timeline, while if Hyrule looks a little off it is from the "everything isn't good" future timeline because the events of WW have taken place.

Then again Nintendo claims there is no timeline but that feels more like a cop out to me.