Honestly, the lore (and consequent lack of armour) is what seems to seal people's opinions of the SGK. If they had called him the 'Doomseeking Naked Fanatic Vampire of Flaming Death' people might use him and be all 'awesome lore bro'
But really, SGK have formed a mainstay part of my battleline. Ive tried using Vampire Lords and find them waaay vulnerable to miscasts if you make them casters, and too expensive for the combat role (compared to the SGK). In fact my Lord was overly durable....I'd spent so much on his protection he was never wounded, but his combat ability was shit compared to the SGK who would reliably tip whole combats in my favour. SGK can be wounded, but can recover fairly quickly (I run tome-enhanced IoN spam, so there are plenty of wounds being recovered).
Anecdote: Vanilla SGK in a new unit of raised zombies (parent unit had hex and was about to be hydra bait, so I ran him out). The SGK made the zombies so good at winning combat the unit continued to grow until the end of the game at which point it numbered over 60 models.
Moral of the story: Never leaving home without a SGK in future.
But really, SGK have formed a mainstay part of my battleline. Ive tried using Vampire Lords and find them waaay vulnerable to miscasts if you make them casters, and too expensive for the combat role (compared to the SGK). In fact my Lord was overly durable....I'd spent so much on his protection he was never wounded, but his combat ability was shit compared to the SGK who would reliably tip whole combats in my favour. SGK can be wounded, but can recover fairly quickly (I run tome-enhanced IoN spam, so there are plenty of wounds being recovered).
Anecdote: Vanilla SGK in a new unit of raised zombies (parent unit had hex and was about to be hydra bait, so I ran him out). The SGK made the zombies so good at winning combat the unit continued to grow until the end of the game at which point it numbered over 60 models.
Moral of the story: Never leaving home without a SGK in future.