I always found the Gaustav/DoD combo in NS3 to be my favorite. Even at the highest lvls they both provided a good battle.
It seems that both have become a bit flabby in thier "old" age. DoD lacks the ability to heal as he used to, and his hit is a bit weaker. Please send him to the gym and buff him up a bit.
King Gus seems to be fixated on hold person rather than the harms he used to thorw.
Also maybe adding a few more mobs in the crypt would be an option.
Thanx
Gaston (BoC)