A couple of books i have read over the years that i have liked are as follows:
The Maximum Ride series by James Patterson.
It's about a group of genetically altered kids who escape the lab to save the world from bad scientist...Might be where the series Dark Angel came from.
Abarat by Clive Barker
Days of Magic Nights of War also by Clive Barker
Both of these series are from Anne McCaffrey
The Freedom series: Which is about an invasion of earth and the hardships the peope have trying to take back their planet.
Freedom's Landing
Freedom's Choice
Freedom's Challenge
Freedom's Ransom
The PeTayBee series: which is about a disabled combat vet that is sent there to spy on the people of that world and is healed by the planet and becomes a resident of the planet.
the powers that be
power lines
power play
Changelings
Maelstrom
Deluge