Ed actually has a few close competitors now, based on 24 hour average - 2 Curecoin team members doing merged FLDC, and long-time #2 "war" are also up there.
Going to be interesting to see if he does any rig upgrades to hold on to #1 all-time producer - as I understand it he's still running a bunch of 9xx series cards.
He's got some time though, war isn't quite matching the 24 hour average and is 2 billion points behind, while the others are over 10 billion back.