By the way, those demonesses, dryads, and swordsmen really annoyed me. It felt like the chance of missing them was at least 90%. Ancient vampires didn't dodge as much, but these three... Maybe in the next playthrough, I should fill all the slots with just animals? And who should I take as a companion then? >_>
As for swordsmen and guardsmen, it's a different story - anyone will miss them if less than half of the unit remains. It's annoying sometimes, but not as much - I had more problems with knights and paladins...
Of the units, I also like the purple-eyed ones (I don't remember if they're beast or evil) with hypnosis. It's so satisfying when they charm the largest unit and bring it over to their side... Even if it's just for one turn - it's a small thing, but it's nice...
I really dislike bronteros among the lizardmen. A unit that's hard to hit, slow but reliable. And if they dig in, they become a real killer.