Changing the default application for JPGs


How do I change the default app for a group of files(JPG in this case)?

When I double click on a JPG the Classic Picture Viewer launches. I want JPGs to launch in the OSX Preview app. I know I can drag and drop, but its hard to refrain from double clicking after years of viewing my JPGs that way.

Using Inspector, I can change the default app for the file type, but each file retains the "use picture viewer" option. Changing the setting for each of 1000+ files of course is not worth it.

Thanks in advance!