For Monterey Bay, outside Santa Cruz Harbor, the bottom is primarily hard pack sand with kelp. A Danforth type anchor has a hard time resetting when the wind changes 180 degrees from afternoon sea breeze to offshore night drainage. Of the anchors I've owned, I would recommend the Delta, basically a modern plow type with no moving parts
Of course => 50 feet of chain makes up for a lot of faults on any anchor. At Hanalei on 6,500 pound, 27' WILDFLOWER I used a 22 pound CQR with 50 feet of 1/4" chain and slept better for it. That was my primary anchor throughout the S.Pacific, but would be considered out-of-date by modern cruisers. This gear was about max I could pull up hand over hand on the bow roller in a hurry. It lived in the forward cabin, just forward of the mast.