The Anchor Hitch is a great knot for conditions that
alternate between loaded and unloaded such as an anchor rode or where the end
of a line might be flapping around.
The Anchor Hitch is a bit more difficult to tie and remember
than the old standby the Round Turn and Two Half Hitches. However the Anchor
Hitch is more secure.
The end of the line passing under the Round Turn makes the
knot very secure since the harder the knot is loaded the tighter the end is
held.
Some climbers are using the Anchor Hitch in place of the
Buntline Hitch, they found they were not tying the Buntline Hitch correctly
when in odd twisted positions.