They do have the Percy Jackson/Heroes of Olympus series which are very hot. The movies haven't done well, but the books are popular.
I think they also publish the Kingdom Keepers series and Peter and the Starcatchers, both of which do well.
And, in the picture book department, there's Mo Willems, who does amazing books. If you haven't seen them, go to a library or a bookstore and read several. They are a blast.