Even in its current state Mapgenerator is far more powerful than Dragon.
I don't just say this because I'm one of the developers (I had a hand in developing Dragon, I wrote mod11 by myself, and I was a developer for UOL at one point as well).
punt is a great programmer (even though he hates to hear it
) and since I have worked extensively with the prior tools and know all of their limitations (I also have had numerous discussions here about what does and doesn't work and know what all the common wishlists and bitchlists are) and we are working together to incorporate all of the features that a full featured mapgenerator should have.
From a code standpoint it already does far more than any other program. It is rock solid, I have yet to make it crash even when I've input garbage for data, it runs fast but doesn't tie up your entire computer (it will only use 50% of your available CPU cycles, and it does support hyperthreading/multiple CPU). About the only code changes left on it are for the new coastlines.
Data is another story. I am still going through converting Dragon/UOL trans and/or creating new ones. While anyone can create their own transitions and we have a rudimentary wizard, I am still finishing the 3-way template, coastline scripts and cave entrances (old scripts were crap). Ideally I will have a transition package that will need very little changing or adding too (mostly for creative specials and new terrains), because we have made it so that you can have multiple terrain types for say forest for example but not have to clone and edit the entire set of scripts each time. You'll just specify the new terrain to use the forest hash but your own art file and you are done.