Great stuff. Lots of ideas, info and opinions. For me the new braids have their place, I just wish it was quieter comin' through the line guides.
The big thing I think is matching the line to the rod, to the application, to the conditions and the target spices. You might get away with having one of these things out of sink, but two or more is going to lead to broken line or a broken rod, backlashes, lost fish or fish too played out.
Having a few different knots in your arsenal helps as well. For me that just doesn't mean being able to tie the knot siting in my living room, it means being able to tie it: bobbing in a boat, in failing light with cold hands and a buddy who has landed two fish while you were trying to see the #%@!& eye of the hook.
Many of the major fishing lines have information on their web sites about how to tie knots with their products.
Tight lines (pun fully intended)