1. Halfway to the Grave (Night Huntress Series): Jeaniene Frost's Cat hates vampires and has vowed to kill as many as she can to avenge her mother's mistreatment at the hands of her vampire father. When she meets the vampire Bones this half-vampire, half-human has either found the love of her life or the death of her. As the series progresses it is so fun to be part of this romance. I also love the spin-off books, which include the Night Prince and Night Rebel series and two stand-alone novels in the universe.
2. Eighth Grade Bites (The Chronicle's of Vladimir Todd): Heather Brewer's series about a middle school and high school vampire who must fight for normalcy, the universe and a sense of belonging is one of my all-time favorites. This series has a little of everything-- high school drama, supernatural fun, plot twists, mystery, dark villains and humor.
3. Pool of Crimson (The Blushing Death Series): Suzanne Sabol's Dahlia is a vampire killer with her own brand of supernatural magic. As the series progresses Dahlia becomes the Blushing Death and also the lover of a shape shifter and a master vampire. This one has a hard edge that makes the vampire magic a thing of glory.