Nobody has mentioned Global Highlands? It's quite interesting, try it sometime.
I play pretty much all of them, although I generally prefer not to know what I'm dealing with beforehand, so Shuffle or Random Map Script do the job for me. It makes it a lot easier and more predicatble if you know at the start what you're going to be dealing with of the three broad types of map (massive continent/pangaea, snaky continent/archipelago or multiple continents). I tried a Terra once, got lucky and drew Joao, who seems to be unstoppable on that map type because of his massive advantage on colonisation.
Currently playing a map script I have never tried before, Balanced. It gave me a very simple disc-like pangaea. Boring, but the AIs are coping quite well rather than struggling as they do on a lot of map types.