Auto-translated
Well, I've provided options for every taste (including those with banned units and without)... you can also level up a Barbarian in the Tower and a Knight.
New here? I'm Roha — want a quick tour?
The Tower is a quite strong castle, and I would attribute the following to its advantages:
+ A large number of early-game archers – good for clearing the territory.
+ 5 levels of Guild Master + library
+ Quite good starting heroes
+ Relatively cheap construction of giant dwellings
+ Quite strong units of levels 4-7
Disadvantages:
- The castle itself is expensive, and building Titans is extremely costly.
- Weak units of levels 1 and 2.
I haven't found any more disadvantages yet, but I think there will be some.

In what way is Gurnisson fundamentally better than Christian?
In what way is Gurnisson fundamentally better than Christian?

pros: Titans are strong in the late game, and Gremlochs are good in the early game; the magic is powerful; and Solmyr is great.
cons: weak melee units; requires a lot of resources.
Added 1 minute ago
As for tactics, I try to upgrade the Mages and Gremlochs early on, and get magic to level 4, plus a library. Then I gradually build up the Titans.

I wouldn't say that building Giants is easier than building monsters from a Barbarian Castle (referring to the "impossible" difficulty level)...
I wouldn't say that it's easier to build Giants than to build creatures from a Barbarian Castle (this refers to the "Impossible" difficulty level)...
Separately or the entire chain with the necessary buildings?
That's a good point. Especially considering that giants are the only tier 7 unit that can actually be built by the end of the second week.
Well, if you prefer to build them at the end, that's a matter of taste...