This is great for scenario designers who don't know what the shape of their map should be.
The Random Map one is great for people who aren't experts at map design.
The Random Map is not very good for huge cities, but you can fix that easily by deleting a few cliffs. Blank Map lets you put a lot of big cities so problem solved.
Additional Comments: I used the blank version for areas with lots of mountains because it fit in with the map. I'm a bit biased to this map because it it has one of the few of the best Random Maps (Also because it HAS a Random Map). Keep up the good work, and I'm looking forward to new maps like this!