Dragon Tears was my frist Koontz read, followed by Darkfall.
These two are still my top 2 favorites. I will agree that his later works have gotten somewhat stale and predictable, but his older stuff is what keeps me as a fan.
Life Expectancy was great up until the "final twist" at the end...that's where he lost me on that one.
I've only read the first Odd Thomas book and that was years ago. I remember it was quite enjoyable.
Also I couldn't get into the second Chris Snow novel, (The first was great) but I think that could be because I was kind of burned out on Koontz at the time, having read like 4 of his books in a row.
I read The Bad Place a few months ago and frankly it was a little too much for me. All the horrofic twists and "surprises" at the end had be turning my head in disgust. I did finish it and ended up donating it to the library here on camp.
I think my favs are still:
1. Darkfall
2. Dragon Tears
3. Watchers
4. Lightning
Major K
"He guards the sleep of his pauper master as if he were a Prince." George Graham Vest
"We are alone, absolutely alone on this chance planet: and, amid all the forms of life that surround us, not one, excepting the dog, has made an alliance with us." - Maurice Maeterlinck