What mixed hero class of the Haven faction do you like?

In that case, we're talking about an advanced class for the Tactician (buy a Tactician of Life or Death and give him magic from Haven, for example, three altars, learn Illusion, and then develop the Tactician).

I'm saying that from the perspective of Haven specifically, the bonuses are equivalent.
But yes, it's certainly more convenient to start with a Tactician right away (besides the altars, the Seminary and University can also help).
But Illusion in Haven magic is far from the most important thing. If you look at advanced classes in terms of bonuses, then either Monk or Shadow Mage are the most useful.