A lot of it depends on what weight you use. 16lb, the Marvel and Dimension are very similar, with the Marvel being a little more controllable off the spot, making it a little better for fresher back ends.
15lbs, you will see the Marvel pick up a few feet earlier, and be more ball overall.
The rg factor of the cores in 15lbs gives you a bigger separation between the Marvel and the Dimension then in 16lbs.
This is comparing both balls at the same surface, and same drilling.
Tommy Gollick
Storm Regional/Pro Shop staff
Red Crown Pro Shop Harrisburg, PA
stormbowling.com