Yeah, it will be all about those few early battles, later there are multiple ways to deal with stuff, there are no big boss battles etc.
I see people talking about 3 units (dwarf/elf/human army) and actually i had problem with other 3 units. Right after those 3 you have to clear another 3 at whitehill, it's where i gave up on no-loss and brute forced them with spiders, or can you skip those battles at whitehill and i missed that? After those 3 battles no-loss was pretty easy, whoever played any other KB game on impossible won't have any problems.
Demoness is definietly the best at start, late game i would guess vampire will be the king (I wanna to test how far you can push intellect with Archamge talent). Feel like orc is the weakest at the start, he has nothing going on for him. There is shop at his starting location with trolls, would be sweet if we had leadership for them
I was thinking vampire with lvl2 trap and trapper might have a shot, at those 3 battles but then again there are archers and mana will be a problem.
I'm gonna finish my current playthrough (lvl53) and go redo those early battles no-loss.