Santa Cruz is better. There is a campsite 1/4 - 1/2 mile from the beach where Island Packers will drop you. Plenty of sea caves to play in.
Anacapa has 140+ steps to climb before the hike to the campground. You also have to use a winch and a vertical ladder to get your boat in and out of the water. You need to rig your boat so that it can be hoisted and it is a 3 man job - 2 if you are really good.
Check out our club web site for more info http://www.ckf.org