All castles in Heroes 3.

I play different maps, randomly. I always choose Inferno, and always Pyre. Logistics doesn't hinder, especially at the beginning. It might seem, what's the point of this artillery, but that's not the case. Upgraded artillery can deal very good damage, especially if the enemy is in a direct line of fire. If Calh appears in the tavern with 2 stacks of Gogs, you can clear out the neutrals, find some stone for building Efreet. In the first week, I always build Efreet + a Stronghold. It only costs 9,000 gold, 10 wood, 20 ore, 3 mercury, sulfur, and gems to build Efreet, and the Gogs aren't even built yet. I return to my castle, buy Efreet (5 of them), and go to attack something more serious. Then, I try to build Devils by the 3rd week, but it usually happens by the 4th week, or even the 2nd month. So, my choice is Inferno.