So I started using Requiem as well as a mod called Simple Multiple Followers and one of these (not sure which) allows you to check certain NPCs' best stats when you activate them. I noticed the two brothers in the Companions (Farkas and Vilkas, or something like that) have their stats reversed - the one that uses a 2-handed weapon has a high 1-handed stat, and the one that uses a 1-handed weapon has a high 2-handed stat. I believe this could be a fairly big issue considering the unleveled enemies and general difficulty of Requiem.
I'm not a modder whatsoever, but figured I'd post a head's up in case anyone wanted to make a patch to correct this.
Also, I'm guessing there is a possibility this issue could be a result of another mod I have installed. If so, please let me know and I will try to narrow down the culprit.