The HoI4 map is epic in scope, but I love the visual style of Tarabonia. It's just the right size for map of the week games, too, so I'm not too happy to have Greece compete against it.
I wonder why the values of superboni differ that much (attica is 4 for 27 and central greece 1 for 25)
I tried to explain that in the map description, but perhaps not clearly enough so I'll make a longer effort here. In this map I'm using a system where each bonus gives as many armies as the number of territories minus 2. This has the effect of causing a great income disparity between large and small bonuses. In the Northern Aegean, for instance, there are three bonuses of three territories each, giving a total of 3 armies for 9 territories. In contrast, Thessaloniki is a 9-territory bonus that gives 7 armies. Sure, it takes longer for that bonus to come into effect than either one of the three bonuses of North Aegean, but the difference is still staggering and this happens, to some degree or other, across the map. That's where superbonuses come in.
Attica has 27 territories and their assorted bonuses give the player 15 armies, for a ratio of 0.55. Central Greece has 25 territories and their assorted bonuses give 17 armies, for a ratio of 0.68. Without superbonuses, a player can get more armies for fewer territories by owning all of Central Greece than all of Attica. But if we add 1 army to Central Greece and 4 to Attica, then the total army to territory ratio becomes 0.7 for Attica and 0.72 for Central Greece. Done across Greece, this normalizes the income given by all superbonuses to around 0.7 armies per territory.
I have a version under development where I split Rhodes and Lesbos into more territories, but I'd prefer to keep the Holy Mountain separate. I'm just waiting for any more ideas, comments, or mistakes pointed out to me before I make it public.
Edited 4/11/2020 21:32:50