How long until the ABP guys stop their generosity and either 1) incorporate its acceptable ads into EasyList (which they maintain) or 2) block every other ad-blocker from leeching off their lists. I predict former. There are already tons of white-listed rules in EasyList.
Until other ad blockers actually start to maintain their separate list, I don't see a reason to stop using ABP. Ghostery is the only extension that doesn't use EasyList as far as I know. But they too have their own telemetry tracking.