As for myself:
Elantris - Hrathen, definely, simply for virtue of anti-villains being more interesting than "good guys" and IMHO he was a lot deeper then Prince Rotting and Princess Impeachment as well.
Mistborn trilogy - Spook and I´m probably going to be in minority on this one.Wasing not POV until the HoA if I remember correctly but I simply liked this "apprentice of the heroes" perspective with awkward boy trying to destroy Commieland.
Warbreaker - Lightsong. As I mentioned in my introduction thread, I haven´t liked much any of the characters in this novel but at least he was sometimes funny and in the end memorable becouse of what he had done for the good guys.
Alloy of law - Wayne.Again, refreshing source of humor, not all of it worked (I cringed at that "anotomy lessons" joke). Also, he´s Slider and I liked that series.
I haven´t finished WoK, so I can´t choose favorite there and Stormlight archive is far from over anyway.