Oh man, just when I thought I had it figured out, you guys go making me think again.
Here is where I am at...
Boat - 32 ft Islander, ~10K pounds. Cruising the PNW, hoping to go south to Mexico, Central America, etc.
Currently have 2 fluke type anchors, not sure of the brand. Why? Because they came with the boat, seem to work well in our current area and our current fair weather sailing is relatively safe. However, a new anchoring setup is on my "Do Soon" list, so I have been researching this too. Here are my thoughts, for what they are worth....
1. No moving parts. They might be good, but so are other anchors and handling a heavy floppy anchor sounds like no fun on my rather limited foredeck. Also, having a wife and kids who are handling the anchor makes me want to make it as finger safe as possible. If there was a large enough difference with these types, I might consider them, but for me I am not seeing enough benefit.
2. I looked at the Rocna and Manson and was convinced of their higher holding power and easier set. However, the fact that the roll bar seems to always bring up a lot of junk was a big negative to me as we do not have a windlass and would rather not on our smallish boat.
3. Delta (currently top of the list) Seems these have worked well (but not perfect) all over the world for a long time. Sure some people drag, some people do not get it set right, etc. But with a high volume of anchors out there you are bound to find a number of people who do not know anything about anchoring, then complain when the anchor does not work when dropped over the side at 2x1 scope in a storm. I have heard enough world cruisers talk about delta's who never had a problem to feel confident that if used correctly, they will hold my boat securely. Sure I might might want a second anchor deployed before they guy with a Rocna in the same anchorage, but for the few times I will have to go through the hassle I feel it would be worth it.
Just my thoughts so far, of course I have not purchased anything yet