I use:
YLI Glazed
Mettler 40 wt cotton (I use wax with this)
Sulky cotton 30 wt.
Coats and Clark quilting thread
Sulky 12 wt. cotton
perle cotton #8
Even YLI Jeans Stitch polyester
and a metallic thread once (what a pain!)
I have NOT used silk for handquiting, only for applique.
Jan in VA