Gonna have to second this one.SomeLameStuff said:The Codex Alera.
Think Lord of the Rings with Pokemon. Then multiply the battle scale by at least 5. The last battle in the book consists of an army of millions assaulting a fortress while the main character and the big bad duke it out while standing on a giant the size of Mount Everest. Which is also trying to kill both of them. Tell me that's not awesome!
God I love those books.