Ibis grants some more DPS and aggro, but Yun tank blunt is definitely nice and the Kithai 1H weapon to look for for tanking DT.
Armor and Hit Rating are definitely good stats that Ibis miss.
Retired nab.. once it was Korando (PvP 10 BS), Andromaeda (PvP 10 Sin), Calore (PvP 10 Demo) and minions...