Your favorite Fortress hero.

Lately, I've been considering Dwarves as a powerful faction in the world of Heroes of Might and Magic. I can't decide between two heroes, Inga or Ingvar. Inga has an advantage at higher levels due to her higher total stats from education, but that's also a disadvantage compared to Ingvar, as she won't have one of the important skills (defense, attack, luck, light, leadership). I'd like to ask for advice: who is better, and which skill can be sacrificed with the least negative impact if I choose Inga?