Digg is still the master. What people FAIL to understand it that there is NO frontpage on Reddit. We all follow different sub reddits, so if you get alot of upvotes in Apple, Iphone or what ever, 95% of redditors would never see it, as they don't follow that sub reddit.
Digg on the other hand has ONE front page. So all users of DIGG will see your stuff.