I use many different lines, depends on what I'm fishing for. Some of my reels are spooled with 30lb and 50lb Power Pro, those are more for fishing toothy critters or areas with a lot of wood and spinach. Ultralight and light I run 4lb and 6lb Maxima. For 8lb mono and heavier, Big Game is hard to beat. It's fantastic on baitcasters, not so much on spinning reels. You could weave a basket with it but it won't let you down. As for fluorocarbon, I've tried quite a few brands. Im not a big fan, probably won't find it on any of my reels.