the orvis knot is a stronger knot and a little harder to tie than the davey knot. but if you do the davey knot you have 3/4ths of the orvis knot done already.

If you are going to take other peoples info:
I have tested the Davey Knot against the orvis knot and the orvis knot wins everytime. [url=http://www.orvis.com/orvis_assets/files/index.html:439a9]http://www.orvis.com/orvis_assets/files/index.html[/url:439a9]

I am not the only one that has tested the orvis knot to be stronger than most other knots.
[url=http://www.midcurrent.com/articles/gear/scheck_lastlink_1.aspx:439a9]http://www.midcurrent.com/articles/gear/scheck_lastlink_1.aspx[/url:439a9]