4# trilene xt (it doesnt kink as bad as the other styles, but brand probably doesnt matter much) on the spinning rod for jigging walleyes and the past few years ive been using 14# fireline on the baitcaster. i got some 15# power pro a little bit ago and the stuff seems to really be a good line. casts a bit nicer and doesnt dig in the spool as bad, but then again im comparing 4 year old fireline to fresh from the spool power pro. the p-pro is a smaller diameter and is round (opposed to the flat fireline) which i prefer.