I love Erik.  I knew his story was going to be fun because he's just a joker in the group, and just in general seems to be pretty flirty.  Ellie was awesome and their charming highlander and hard to get heroine dynamic was fun.  I have a feeling we won't see much of the wives in the following books, maybe in passing, but that's okay.  Because the bromances and friendships are some of my favorite parts of these books and I'm actually looking forward to the various missions the guard will end up on.  Again, this is the most researched series I've read so far!