I like tarred bankline (Catahoula brand especially) very well although I do sometimes have the cheaper mason's line. I like paracord better for the ridge line though because I like the way it works in conjunction with tarred bankline (a Catahoula Prussik knot holds very well in paracord, and my repertoire of knots could be better! blush). Definitely you can get 100' of bank line or mason's line in the space of 25' of paracord.
“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman