I've played exclusively on Tectonics lately, I really like it. So I picked "other".
I think the landmasses you get are very varied from game to game, yet still "coherent". This is a bit hard to explain, but even though fractal gives some wildly varying results, the terrain types and shape of landmasses looks alot more well..random. Like a painter took a brush and flung paint at a canvas, chaotic.
The tectonic map is very varied yet still looks more like actual continents, at least that's the feeling I get from it. Also there's a more subtle change in the transition of terrain types, for example there's some grassland tiles mixed in with the tundra even far south but in a way that does not strike me as haphazard but deliberate, making these areas sligthly more appealing overall rather than going from great city site to horrible city site within the distance of a single bfc radius.