I vote knights #3 - not very fluffy but very much needed.
What is the overall plan for the wiz on grif?
High Priest of Taal (Boort the Fierce): lvl4 (Lore of Beast), Fencer's Blades, White Cloak of Taal, Ironcurse Icon, Griffon /w Bloodroar. 485 Pts
Fencers blades? You don't get add attack and enemies will just choose to attack the griffon instead. Ironcurse Icon, if you use this then the 5+ ward from the White Cloak is lost (models can only have one ward save).
I think there are two options:
1) Character hunt and/or engage enemy units in flank. This means: Van Horstmann's Spec + OTS + Talisman of End/Pre. Since it will most likely do the charging it can issue a challenge, then let the griffon rip the other character to pieces.
2) Warmachine hunt/ flank protection. Which requires something like: White Cloack, Bloadroar and Two heads ...
Either way the current setup is a bit in between and needs to be altered so that it ca do one specific task. (IMO)