You know, at first I thought Mjoll was a bada$$, but after getting her some Daedric armor and a few upgraded weapons to go with Grimserver, she's turned into a bit of a Striesand. I took her with me to fight for a couple of Dragon Priest Masks and I sat back and watched her. She almost didnt fight. She was slow, just sat there while bad guys where wailing away on her with their swords/maces, etc and not doing much. Im like "Mjoll, fight back!! Fight!!". I had to go save her. Man she's gotten kinda weak. Im married to her so if she doesnt get any better, Im just going to leave her at home from now on.
When we first started out on quests together she was a complete and total bada$$. We'd get a whole lot of cool animations on our kills, it was like I my Bretan chick character had found her soul mate. Now, she yacks and yacks and yacks a lot mroe than she fights. I'll be like "No Mjoll dear, you just make me some dinner and stay at home, Jordis the Swordmaiden and I are going to hit the town tonight".