Nikola obviously loved it, he enjoyed a fine glass of animal plasma as a human would enjoy a glass of Shiraz, he loved the taste, it was more than just enough nourishment.
John obviously enjoyed it too, he blames it on the beast within him, but in truth he knows the beast chose him because his mind was willing he loves the feeling on his hands.
Nigel didn't so much like to touch or taste it, he simply loved the look of it, he would sit and watch it like a symphony it called to him, silent and beautiful, he would sit invisible and listen.
James did not have a lust, but still a need, he would follow it, seek the cause of it, try to stop it, all the while surrounding himself in it.
Helen would like to think she does not crave it as the others do, but she knows every time she pulls the trigger defending herself or someone else, she caused it, created it, and over the last century and a half she had seen more bloodshed than most, and still she never tired of it.
All vampires need blood, all of them crave it, in whatever form, they all call to it, speak its language, they all understand it, want it.
All vampires need blood.