Eze-Lap's diamond hones seem to run pretty coarse for their rated grit. I have a Dia-Fold-style hone of theirs in that 400/1200 combination (they call it 'Medium' and 'Super Fine', IIRC), and the '1200' side leaves a finish essentially similar to DMT's 600 (Fine); the '400' is likely similar to DMT's 325 (Coarse). So, between the two you list, I'd say 'either one should do OK' for you.
Having said that, I still prefer the finish of DMT's hones in general, which seem to leave the edge cleaner and less in need of de-burring. That seems to speak for the cutting quality & uniformity of their diamond grit specifically, irrespective of it's rated size. For quick grinding & rebevelling tasks, they're both good. But, I often follow up the EZE-Lap hone with finishing touches on the DMT, for the reason mentioned.
The EZE-Laps are less expensive and a very good deal for the price. I can't knock them at all. But it's hard to beat DMT's consistency in finishing; I've gotten spoiled on them.