I actually have two kinds of favorite things to make. Even after all these years I still really enjoy weaving links together to create various patterns - I like to think of it as 3D cross stitch, lol! And the tri metal designs are my favorites to make because I also have to keep track of the various colors of rings to make sure the pattern turns out right.
As far as the woven wire designs go, I admit that all of the black enamel designs are favorites. I really, really love the way the finished product looks with the contrast between the shiny black of the enamel and the sparkly woven metal inserts.