Paladin (Undead Hunter) or Ranger (Archer)?

I want to play through the campaign as an undead hunter/vampire hunter archetype with crossbows being the primary weapon, but I can't quite decide how to go about it. The obvious choices would be Undead Hunter, or an Archer with vampires chosen as the racial enemy. Which one would be better overall?

My current thoughts on the two kits are as follows:

UNDEAD HUNTER:
* Immunity to Hold and Level Drain.
* +3 to hit and damage against ALL undead.
* Better proficiency in melee.
* Turn Undead, Protection Against Evil, Detect Alignment.
* Better spell selection (in my opinion).
* Ability to equip heavy armor.
* Ability to use the Holy Avenger (if melee becomes necessary).
* Better saves? I've read that the saving throws are bugged, but do paladins at least receive better saves?
* Most likely a higher Charisma, which is good for the party leader.

ARCHER:
* Significant boost to THAC0 and damage when using the crossbow.
* Stealth.
* Bonus vs. vampires (although, I'm not exactly certain what the bonus would be).
* Called Shot.

It seems that the Undead Hunter would be more versatile, while the Archer would have a far superior THAC0 and damage modifier with the crossbow. What say you?