Jeff Atwood has posted that he uses the following view as a basis for deciding which features to implement. I suggest adding this as one of the available view tabs on meta.
This is probably the view that Jeff meant to post: https://meta.stackexchange.com/questions/tagged?tagnames=feature-request+-status-declined+-status-deferred+-status-completed+-status-bydesign&sort=votes
This one for questions tagged bug would also be interesting:
although you might want to also exclude status-norepro.