I have a Marvel Pearl and a Reign. As others have said the MP is an earlier and smoother reaction. For me the MP can handle medium to medium-heavy conditions. The Reign is more medium to medium-light conditions and can be squirty on oil which is why I'd never throw it on a medium-heavy condition. Overall I'd say the MP is 5 boards stronger(sometimes more) and can handle a lot more oil.
If you need something just a little stronger(not a lot) I'd think a Victory Road Solid might be a better fit. It's definitely more ball than the Reign but not as much as the MP.
Edited by al_g on 11/4/2011 at 1:26 PM