On my baitcasters, it Trilene XT, usually in green.
on my spinning reels, I converted to using PowerPro microfilament line.
from THIS REVIEW ;
"The Power Pro has no stretch, will not cut rod guides, its super sensitive and strong, has no memory, its limp and easy to work with right out of the box, and it casts like a rocket ship on grease! If you like a no-fuss, day after day, user-friendly, change once-a-year line, give Power Pro (www.powerpro.com) a try. I think youll be pleasantly surprised."
its everything he says it is. the sensitivity is amazing.
Power Pro 10/20/30/40 #. I like to use flouro carbon for leader as it's the hardest for fish to see and adds a bit of shock absortion where the Power Pro has none. I use the 10# (equal to 2#) for freshwater and the 20-40 # for intracoastal and ocean.
I use Spiderwire exclusively. I have ever since it came out on the market and never lost a fish because the line broke. That is some amazing stuff. My brother in law brought in a 23# Lake Trout on 6# Spiderwire off Lake Superior right off the beach in front of our house. Pretty impressive.
Oh, yeah. Hundreds of fisherman spend thousands of dollars on downriggers, charter boats, and an insane amount of tackle. Myself and my father in law catch 20-30# Lake Trout off the beach here on get this: NIGHTCRAWLERS and a 1oz sinker. We wade out to chest deep water, fling the bait out, walk the pole to shore and put it in a cinder block. We put bells on the end of it. When a fish is on, the bells ring, the dog goes nuts barking at the pole, we run down there, grab the pole to set the hook and bring it in. We usually catch Lake Trout, Pink Salmon, and Rainbows. Sometimes we get bullheads.
I really like using the P-Line, have had good results with it.
I also like Ande line for a cheap line, I can spool alot of reels with a spool and use it for my reels I get alot of line abuse from rocks, and debris like for drifting for steelhead.
I like power pro, especially when fishing top waters here for speckled trout. I used it on my casting reels, and it works good just have to make sure you keep it taunt on the spool or you can have some problems. I like it especially for my cat fish reels and surf fishing. I like it for long casts I can see the light hits on my rods.
So far my favorite mono is P-line, or Ande. For braid I like the power pro. I like it more than stren, and more than the Berkley braids. I havent used the western Filament or the P-Line braid but feels and looks alot like power pro.
I have been a BIG fan of P-Line for about 2 years. In the last few weeks I have been using PowerPro on a few reels to try it out. I'm really starting to like this line. I'm going to switch all my spinning reels over to the 15lb PowerPro. I'm going to stick with the P-Line for my baitcasters. BUT This may change in do time.
Trilene Fire-Line, the best imho. The stuff just does not break, plus no stretch so you can really feel the bottom.
Great all-around line. I think its the best for lindy-rigging for walleyes. Out on millacs with nine foot snells, and fireline we kicked alot of serious arse!!!
I love how its almost like a threaded line, not some wimpy monofilament. Even with a knife, the stuff more unravels than breaks. I dont know how well it works on baitcasters, but i dlont fish much with baitcasters, except for trolling.