Anyone own both or have compared it with others. Please
let me know the difference you see between the two. I've seen
The rising star thrown by two friends. I can see the rising star being clean
through the front and reving up hard in the mids and coming off
the dry hard. Haven't seen anyone throw the Bandit yet.

We reviewed and tested both. 
The Rising Star is going to be slightly less ball than the Bandit overall.  However, it offers very good control.  It is pretty clean through the fronts and reads the midlane nicely while still offering a good move on the backend.
The Bandit is a lot more aggressive at the breakpoint.  It transitions sharply.  I would consider this ball much more of a skid/flip type reaction.
You can read the Bandit complete review with video and Digitrax analysis here:
http://tamerbowling.com/index.php/roto-grip-bandit-bowling-ball-review/
You can watch the video of the Rising Star here:
http://tamerbowling.com/index.php/roto-grip-rising-star-ball-review/