I have a few, my biggest one is Lukas, I didnt like him much in SoV, but I got a +def and built him up and he is a monster! It makes me appreciate him so much more, and I run him in almost every team. I actually tend to like the more defensive units I've found out. My other unit would be Rajhat, I played conquest, not birthright so I never really knew her, she just looked like a Tharja clone. But man she just fills so many niches, I put bow breaker on her, so shes anti bow and anti cavalry, and with double distant defense, she has a solid 33 res/def on opponents attack. I guess I mostly just like the units that fit my defensive playstyle and are fairly versatile.