On SM, the strength also varies depending on preferences; for example, for @Bритва, Citadel is in 1st place, IMHO:) And for @Пит, Conflux. @Стингер manages to excel with everything on Tower!
But personally, my opinion on strength is this: Fortress is by no means in the middle, because in drawn-out games you can't break Tazar, while Griffin Conservatories/Dragon Utopias with mega-armor are fairly easy to break
SM game:
1. Necro
2-5 Conflux, Dungeon, Rampart, Fortress
6-7 Citadel, Castle
8-9 Inferno, Tower,