Until I find something better, FIRELINE has been my Go - To line.
I used to be a big P-Pro fan, but those phantom break-offs have stopped me from using it. Although P-Pro is a softer line from day 1, Fireline will also soften in time, and the strength seems superior (iffin' that makes any cents)
....and yes, I always have something spooled w/BigGame - I'll never forget ol' faithful.