6 out of ten stories in the new links section can be predicted by whether the top users vote on them. Really, only 6 out of 10? This seems extremely low given the claims of gaming (and if I'm understanding it correctly).
EDIT: http://www.seomoz.org/blog/top-100-digg-users-control-56-of-...
For example mklopez[1] submitted 16k stories were only 10% hit the frontpage and LtGenPanda[2] submitted 2,481 with a 42% popular ratio. You can see this stats at the bottom right of the user profile on Digg.