reBoxed lets you vote on your contacts and reorganizes your inbox based on your and everyone else's votes. This is what that looks like:
@andyy writes on Twitter:
@gabor repeatedly wanted a "can't decide/equally important" option - am I too apathetic? :) [...]
I think that reBoxed should not have a "Skip" button. I want you to make a decision. Those two friends that you both value? Your sister vs. your brother? Make a choice. This might sound radical, but one of those people usually does write more important emails.