I have lots of troubles deciding between those 2. Price aside i am not sure which one works best. I like the node editor from Map Magic and recent biome stuff, almost only thing i see missing would be river / road generator. World Creator system with the filter seems to have good results but it feels more restrictive, but i may be wrong and if some of you already have both it would be great to know in which case you would use one over the other ?
I was also considering Gaia and even though i’d like to hand place a bunch of stuff i leaning more toward generators (worked with World Machine before).
I know this is probably late but I bought Map Magic and haven’t regretted it at all. The main reason was that the author is very active and helpful. Great asset.
Is non-destructive working in "layers"supported by any of the two above?
What really slows down fast iteration over terrains is the destructive nature of the asset files. Adding roads or rivers usually kills the nicely eroded heightmap. Later in development you decide to change the flow of these features? You better saved some backup heightmaps and have some time to do heavy masking in PS or Krita.
If this major point gets addressed by any of the two above - sold instantly.