TBH, a series of books i have really been enjoying is the Nephilim Series.
Not sure if i would call them my favorites though, not sure if i really have a favorite book. I have read eveyr Tom Clancy book at least twice if not three times and I am also a huge Andy Mcnab fan.
The Nephilim books are good for a fictional
read. They are actually a christian set of books and providing a fairly uniqe and different perspective on "aliens"
I am not religious at all or hold any belief, what I did read the book for was good entertainment, a incredibly imaginative author with an obsession for his beliefs.
The books in the series are quite good.