If we're going into analysis... Then imho, the strength of towns also varies depending on the template: for example, on Jebus Cross, Fortress/Castle is a must-see, while the necro imba is one of the weakest. On 8mm6(a), towns like Rampart gain a lot of strength (the highest chance of Dimension Door in the guild). I understand that we're talking about the SM.
On SM, strength also varies depending on preferences, for example, with Razor, Citadel is in 1st place, imho:) And with Pit, Conflux. Stinger manages to turn everything around with Tower!
But my personal opinion on strength is this: Fortress is by no means in the middle, because in drawn-out games, you can't pierce Tazar, while Griffin Conservatories/Dragon Utopias with mega-armor are quite easy to pierce
SM:
1. Necro
2-5 Conflux, Dungeon, Rampart, Fortress
6-7 Citadel, Castle
8-9 Inferno, Tower,

I am surprised by those people who consider Necro the strongest town.
It undoubtedly dominates on templates with a large number of low-level neutrals (mininostalgia) or the absence of relics (e.g., balance, panic)

On the contrary, on Jebus Cross, half a thousand skeletons gathered in 2 weeks won't play a special role; on the contrary, they will only get in the way during the early game.

On the popular SM, Necro is very dependent on the layout. If there aren't small Griffin Conservatories or hives nearby in the debut, it's very difficult not to lose skeleton mass in battles, especially when using Necro chains.

The most effective town on SM, I would call Rampart. This town has many advantages:
1. Cheapness of Pegasi and Unicorns
2. Best piercing power
3. Good early-game potential - Grand Pegasi, which are also great for breaking ranged blocks
4. No-movement-penalty terrain, allowing quick movement of the entire army in Shadow of Death.
5. Good chance of Stables
6. Availability of good cannon fodder - Dendroids, Dwarves, and Centaurs for taking Griffin Conservatories and Dragon Utopias
Also, great vulnerability to a rush from Sylvan, Castle, Tower, and the little Citadel, which initially have an advantage in ranged combat.