I'm a huge fan of Honeynut Butternut. They're extra sweet and yummy butternut squashes in a tiny individual serving size. Their skin is soft enough to eat, so I'm not sure if they're as storage friendly as the butternut.
I bought them at a farmers market and planted the seeds, but didn't have...
Styrian Pumpkin have hulless seeds that are delicious! The pumpkin flesh doesn't make great human eating and is typically pawned off onto livestock.
Other common hulless seed varieties include: Kakai, Tripple Treat, Lady Godiva
(if you think you might like to treat yourself at the same time!)