I wanted to comment on the variety of maps you guys are making for this game. First off I think its great that you are providing different scales. Sometimes you just want to have a 2v2, and others, you have a large group and want to duke it out across a 5v5 map Each arena also provides a unique backdrop and set of 'creep lanes' that makes each map play out differently.
However - what I am concerned about is, the inevitable favorites that make the unfavored maps a waste of time developing. Things like Dust in Counterstrike, Big Game Hunters in Starcraft, etc. Over time, the playerbase tends to gravitate toward a set of particular maps that are most liked. This can shorten the lifespan of the game for certain people who like to have a variety in the gameplay.
So what is being done in Demigod to counter this? I can think of one thing that fixes it - and that is automatching. When the map is drawn from the list, they all get played. If demigod is going to be stuck on skirmishes however, certain maps will always be played.