"The Grant County Series, by Karin Slaughter"
It's a series of books about a pediatrician/coroner, Dr. Sara Linton, of a small town in Georgia. She comes across brutal crimes, and as a coroner, she has to work with her ex husband (though that kind of changes as the series go), the county's sheriff, Jeffrey Tolliver, and troubled detective Lena Adams. The characters are compelling, the crimes and suspense are bone chilling.
"Don't Tell, I'm Watching You, Nothing to Fear, You Can't Hide and Count to Ten, by Karen Rose."
It's a series of romantic suspense novels that happen in Chicago, in which characters alternate from being main to secondary (the main character of one book is secondary in the others). Karen Rose builds characters like no one else, they're endearing, lovable, you wish they were your friends, your family, your neighbors. The plots are creative and original and the romance makes you drool.
"The Predator Series" and "The No Evil" Series, by Allison Brennan"
Two interwined series of romantic suspense novels by Allison Brennan. The books are technical, the plots are creative, the characters are likable. The technicalities and forensics give the books a distinguished trait.
"The BulletCatchers series, by Roxanne St. Claire"
A series of romantic suspense novels about body guards that will go to hell and back to protect their subjects. St. Claire's clear and fluent writing, plus her fascinating characters and hot, steamy romance, make her books amazing reads.
"The Buchanan Brothers Series, by Julie Garwood"
It's a series of romantic suspense novels about law enforcement brothers, who end up in cases in which they have to protect a women -- that end up turning out to be someone they could be close to. While the plot seems generally stereotypical, Garwoord's humor is unique -- her books are absolutely hilarious and her characters find themselves in situations you wouldn't believe.
The Jane Rizzolli/Maura Isles Series, by Tess Gerritsen"
A series of psychological Thrillers like it's never been done before. Gerritsen gets in the mind of psychopath killers like no one else. Her books are creepy, fascinating. Her characters deep and compelling. Her prose fabulous.