The following simulations were made on several camps of different adventures: The Island Of The Piratesw, Witch Of The Swamp, Traitors, Sons Of The Veld, Roaring Bull, The Valiant Little Tailor, Ali Baba The Young Wood Cutter.

I remind you that all the information about the champions are from the test server.

SUMMARY

In each adventure, there are camps in which useful is each of the new generals, as is clearly apparent from the simulation.
Vargus can accommodate many more units than the rest, is often useful to the enemy units which attack as the first and weakest target.
Anslem redues attack power of enemy units to the minimum. This is useful when attacking targets which have a very stretched range attack power.
Nusala is presented as one of the better generals, because she attacks as first and has a large attack power (1.000-1.500), so it can successfully replaced 2 waves MMA (with 1 Recruit). Certainly will be useful in most camps.
If we don’t have the cannoneers, the generals will not be too helpful, because it can accommodate a lot less units than Master, Veteran and Major, and consequently their attack power is reduced.
So whose general choose?
I can’t clearly answer on this question, because this will depend from the adventure which we will do.
If we have the opportunity to buy the rest of the generals in the store in the game, better choose Nusala.
In cases where we don’t intend to spend the gems, the decision we have taken ourselves, because each new generals is useful.

Below four versions of the Black Knights, which may help dispel our doubts:

Versions Of Attacks	Smallest Possible Losses
	WITHOUT BLOCKS	WITH BLOCKS
General MMA + Vargus with Cannoneers	– 1.003	– 700
General MMA + Nusala with Cannoneers	– 997	– 609
General MMA + Anslem with Cannoneers	– 948	– 600
General MMA + Vargus + Nusala + Anslem with Cannoneers	– 835	– 555