Pangaea tectonics is no fun. Usually no arctic areas. I want lots of ice to turn into grassland or burning wasteland. Boreal is no good because it hurts AI too much, even Illians.
EDIT: I ran one game of Erebus Continents. Better by far than Erebus but not enough of a sample to say if I like it more than tectonics. However, I feel it could be great to put it in as an official mapscript, as in included in the download.