The Diablo Foothill is not a great league/division. There are no really bad teams, but no really good teams, either.
Tri-City has St. Mary's, whose rating brings up the rest of the league, but there's not much behind the Rams. Edison has played 3 good teams, but they weren't really competitive against any of them. They very well may lose to Downey this weekend, too.
Windsor hasn't beaten anyone of consequence out of the Redwood Empire Adobe, nor has San Marin. We'll see what happens when they finally have to play Marin Catholic and Cardinal Newman.
PCAL-Gabilan is arguably better than Diablo-Foothill, with two teams at, or above, the level of Las Lomas.