I have a use for every line out there
long cast jigging for walleye I use nanofil It will cast a mile, no stretch, and sensitive, but nanofil is not very abrasion resistant and will break easy if nicked by teeth, scales, or rocks
Long repetitive casting for big pike or bass I use Suffix 832 its as tough as power pro but a bit smoother thru the guides so I get a bit more distance, but it is more expensive.
super clear water with finicky walleyes I use suffix fluorocarbon, it disappears in the water but doesn't cast as far and not quit as strong, however it is more abrasion resistant.
basic jigging and riggin I use 10lb power pro, its just a good all around line.
With top shots for rocky areas or sharp skinned critters like tarpon, gar, or sharks I use mono because it is abrasion resistant and it has stretch for shock absorption for the violent fighters like salmon & tarpon to keep the hooks from tearing out.
every line has its place, and sometimes you even have to combine them to get the best of both worlds.