I've been playing an undead hunter up to Chapter 3... And have concluded it's by far the best character i've played..
He's immune to level drain and all other affects of undead (stat drain..ect) except for a ghast's nausea and plain melee attacks. This make my character invaluable when fighting any sort of undead (liches too!)
Along with Carsomyr (my seventh party memeber

) He's immune to Beholder and Gauth's Hold Rays (Undead hunter kit is immune to hold) and carsomyr gives him magic resistance against most all of beholder and gauth attacks. Unfortunately Beholder's Death Rays and Flesh to Stone slip through and usually kill my character unless he makes his save.. So reloading is common.
I have yet to test this one out...: He's immune to stat drains from undead... perhaps he's immune to a mind flayer's Int drain too?
I like my range weapons so I don't want a cavalier any ways.. also Undead Hunter is better than Inquisitor because Dispel Magic is useless once you get carsomyr and and Immmunity to charm is useless once you have helm of charm protection (Note: I lOVE dire charm if my paladin is off by himself.. Yes, that's right.. He won't attack any of my party members if they're out of sight and this, coupled with a ring of gaxx or ring of regeneration, makes it so that he sits there not being attacked by my enemies gaining hit points! After the spell duration expires, I can go right on attacking...) Only problem with Undead Hunter is that he doesn't get Lay on Hands.. (boohoo, i've got cure light wounds in cleric spells and bhaal powers)
------------------
*Slash*Slash*
Demi-Lich

eath
Synthos, looks at
Carsomyr +5...: Man I love this sword!