The two that were in it for me were Terra Incognita and Lost city of Ubar, whilst Cataclysmo has the deeper story (and I do love a good story), for me the technical differences between the two maps other than seemingly a different hue, the map doesn't seem to have changed at all. I really like the maps for Terra Incognita, but unfortunately it was the lack of story here that let it it down a little and for me the information that was trying to be portrayed probably wasn't done as well as it could have been (I think given more time then this could have maybe done).

So my vote goes to Lost City of Ubar, whilst the second map feels more like a "ta da, it's gone!", I think the initial map was executed well and the story told me everything I need to know.

Good job to all!