After MANY years anchoring in the PNW (Western Canada actually), here are my thoughts:
1. There's always a new, "BETTER THAN ANY OTHER ANCHOR" anchor on the market. After a few years, you find they're not much better than the tried-and-true ones. Check out Bruce anchors: they were once thought of as the be-all, end-all, just as the Rocnas are now. But now I see Bruce's being replaced by good ol' CQRs.
2. Just like "there's no replacement for displacement", a heavy anchor (such as a CQR) can be a Good Idea despite any fancy designs.
3. A Danforth-style anchor is GREAT for good anchorages (ie mud) since they hold well, are easy to set and will re-set if the direction changes. However there are some bottoms that they suck at (like kelp or rock). Therefore....
4. Have AT LEAST TWO anchors on board, of different styles (such as Danforth and Bruce). They come in handy for bow-and-stern settings, and that way you have an anchor for a wider variety of bottoms. It's best for both of them to have rodes, etc. so you can bow-and-stern, but a quick-connect could be used on a single rode.
5. The advice of "look at other boats in your area" is a good one - most boaters figure out what's best for anchorages in their area.
druid