there is soooo much to read about this on the internet...
here is a good start
it depends on where, and how, you use your boat.
if all you do is tie to a dock some where, then you dont need much more anchor than will satisfy the law for what you should carry....
if you are a fair weather sailor and do a few overnights a year in a protected anchorage, or anchor out for an afternoon round of cocktails, that anchor will probably be fine....
if you are more adventurous and anchor out a lot in all types of weather, or ever anchor on the windward side of the shore, then a much bigger anchor will be a better choice... maybe two of them.
no one can say what you need for your boat, but we all want an anchor the will be easy to draw up, will set fast and hold like a bollard set in concrete on all types of bottom, and will stow away in a small locker.... unfortunately I havent found this kind of anchor yet.
the new generation anchors are a good choice, but until that were on the market, the world used the bruce, delta, CQR and danforth... they worked then and they still work now, but like there is a difference between a rock and a navy anchor, there is a difference between the new generation anchors and the anchors of 20 years ago...
at a relatively small size, they will all hold in calm waters with no wind, but the bigger the boat, the more current, the more wind and the more waves you get, the more anchor you need. the same with the size and type of the rode
