I'm just finishing the 3rd book in the series! Soooooooooo gooooooooooood!
Have you read the Wheel of Time series by Robert Jordan?
I've read the the whole WoT series, really liked them. Though I wasn't a big fan of the ending.
I love long book series. Dark Tower series, Ender's game and Shadow series, other Card series like the Maker series and the Homecoming series, Harry Potter, Lord of the Rings, Hunger Games. I need a new series to get into, maybe song of ice and fire (game of thrones) as I'm loving the tv series.
I tend to find an author I like and read most of their books. Robert Heinlein, Stephen King, Michael Creighton, Orson Scott Card, some James Patterson (mostly the Alex Cross books but a few other books too), some Asimov (foundation series and some robot books).
I'm currently on the second book of the Rho Agenda trilogy by Richard Phillips.