I've been wondering about certain traits/actions by Ben/Warlow, as well.
It was odd to see him drain Niall's blood by spitting it out, not drinking it. I deduced that it may be because Warlow is a fairy first, then was turned a vampire, and Niall is fairy, too. And Ben/Warlow states all the time how his darkness and light sides battle each other all the time. So, being a hybrid, perhaps he cannot, or will not, ingest the blood of another fairy. (That doesn't explain how he destroyed all the fairies at the fairy club, though we don't know if he ingested their blood or just drained them and spit their blood out, too. After all, Niall found pools of blood in the club, all over the floor. A true full vampire would drain a person or a fairy and not leave a drop, and they've stated as much, over all the seasons.)
Also, when Ben was at Sookie's house for dinner, she laced the chicken with colloidal silver--it clearly did not have an effect on him. And--did anyone notice--he ATE the dinner. Chicken. Wine. Vampires cannot EAT FOOD that humans eat, only blood.
So, this leads me to believe that the "rules" are blurred for him because he has pieces of both fairy and vampire in him. He walks in daylight for having the fairy blood by birth. He is a unique...person. Ben/Warlow has stated on the show, and Kazinsky in interviews, that everything he says about feeling lonely and misunderstood, for being ostracized by fairies, vampires, and humans, is true for this character. This was how he and Sookie bonded. However, it's tough to figure out if this sentiment and connection truly struck Warlow when he finally met Sookie, or if he's still playing her because he wants to...well, we don't know exactly WHAT Warlow wants with her, do we? Does he want to kill her? Marry her? He was "promised" to her but "why"...well, that's the big question this season, isn't it? He didn't have to hunt her because she walked right up to him in the woods when she sensed an injured person in there, in Ep. 1. (That's similar to how she met Bill, too, and he DID lie to her and plant himself there, though. So that question exists for me, too.) Anyway, well, hey, after appearing in the portal as a skeevy, evil, bearded, hat-wearing baddie, now he's clean-shaven and hot, and they connected and he...likes her, and she liked him until she figured out he was Warlow and so far has kept it from her. So...guess it looks like this Sunday she confronts him and hopefully he'll answer her question, "what is it about me...that you WANT?"
As for bringing up Lorena being a bat-****e vamp lady who didn't die with dignity...well, she *never* had any dignity. Why should she die with any? She was a vengeful bitch from the start. This isn't the writers' fault; this is how she was written--and killed off--in the books, too. And as annoying as the Maryann/maenad plot of S.2, it was annoying and out-there in the book, too, so those early seasons and characters did play pretty close to the original plots and character traits. And I'm not even one of those people who bitch about "wah, the series has strayed so far from the books!" It's interesting to see the changes, in my opinion, as it's a different medium. That said, it's equally interesting to see how they retain some character traits and plot lines from the initial first couple of books and corresponding seasons of the TV show. It's a bit of an over-think to say "the show doesn't know how to write compelling female characters." There have been plenty. You want to complain about that...go watch any failed sit-com on NBC or something. :)
"There is no use trying," said Alice; "one can't believe impossible things." "I dare say you haven't had the practice," said the Queen. "When I was your age, I always did it for half an hour a day. Why, sometimes I've believed as many as six impossible things before breakfast." --Alice in Wonderland