Yeah Rampart could be the only 10 woods, even if cheap. It depends on map like Realm of Chaos in impossible level. Every towns have different the economic system. Dungeon needs much gems or you can't build dragons, it takes much time etc also thelazy said Dungeon needs a total of 82 sulfurs to complete town. Ok remember also debt, plague and misleading.
Fight MWMs - stand teach
It is just one of the advantages of Rampart over Dungeon but effect is great. At a certain point defense and HP becomes playing much more important roles and it is proven with this fact that why Tazar starts outperforming Crag Hack in late games.
Rampart will most likely clear up maps more efficiently and rapidly than Dungeon due to awesome lvl1-3 units and it causes snowball effect. Also yes Dendroids are the most suitable units for teleport in Rampart as everyone know.