Felt the Rice was slightly stiffer. Heritage probably goes big mountain better. Rice is more freestyle oriented in the build. Blunted tips (if you are talking about the 157). Go demo. I hate telling people my preference, because my preference doesn't mean everyone will feel the same way.
The Rice is just fun. Groomers, trees, booters. The Heritage plowed through everything. Both boards are sick. You just really have to demo to see what you like better. For me, I liked the edge to edge quickness, and the freestyle feel despite the stiffness of the board. Both handled high speeds very well.