My reply bombed out 1st time, so I'll try again.
Like Ryan says, this is a contentious issue, and an item of tackle, probably the second most important one at that, which will cost you heaps of money before finding what works for you.
Line is a massive category in bass fishing and you need to split it into 4 categories to campare apples with apples. These categories being Monofilament, Flourocarbon, Braid and then mixtures like flouro coated mono etc. I only use the first three. No funny mixes.
Flourocarbon is my main line and have 5 out of 8 rigs loaded with flouro. I use Siglon as it certainly delivers on the value for money aspect, as well as XPS. I wasted thousands, and I literally mean thousands of rands over an 18 month period looking for a flouro line that I was happy with. I use Siglon in the 15 to 17lb range and XPS for the lighter applications. One thing I noted with flouro is that the knot you use does have a effect. I use the palomar knot and Trilene knot on Jigs when using flouro. Flouro is a springier line than mono, but that is what gives it sensitivity. I have used some really top brands and hated all of them, so be careful what you go for.
Monofilament is slowly being removed from my arsenal, but I use simple Berkley Big Game in clear nowadays. I used to use Double X Platinum and found it to be an awesome line and good on the budget. It does coil up a bit, but tie it to a fence pole and give it a good stretch once in a while and you'll be good to go again.
Braid has recently been reintroduced on my side. I struggled to find a braid that cast well, but didn't wear away the eyes on my rods. I gave it up as a bad joke until I got given some imported Asian stuff that is truly awesome. Casts like a bomb and doesn't wear your rod like others. The knot strength to leader is a bit of an issue, but have found a way to get around that. Previously I used Fireline braid and found it to be the best of the bunch, but still didn't like it.
So, before you rush out and buy line, find the application you want it for before you buy. I fish plastics on flouro only, crank on mono and flouro, and fish frogs on heavy mono or braid. I also do some shallow cranking on braid with flouro leader.
Hope this helps.