First, in my personal opinion Ohero fluorocarbon is the best. It ties easy and is very abrasion resistant! Best of all it is very affordable compared to other brands. What I do when fishing: I will rig one outfit with just plain old saltwater leader and the second rig with fluorocarbon.
I start with the fluorocarbon and if I am getting bites and hookups, I then switch to the saltwater leader to see if the hookups continue. If they don't I go back to the fluorocarbon. If the water is dirty or not clear, I use the saltwater leader. The saltwater leader is much much cheaper. But the best value in fluorocarbon leader is the Ohero brand, you get more yards for less money. It also happens to be the best fluorocarbon that I have ever used.
You can get Ohero (and TONS of other) tackle at one of three locations I personally support.
Saint Petersburg Fishing Outfitters, Tarpon Fishing Outfitters, or Tampa Fishing Outfitters. All stores offer great stock, great pricing, specials, and a very knowledgable staff. If you cannot get to any of the three stores (although you really should; it's a cool experience) than you can get the products on Amazon. We have listed a few below, and if you get any we make a cents for your purchase.Thank you for sending in your question. Please tell your friends about us and please like our Facebook page!! http://www.facebook.com/TheOnlineFisherman
Captain David M Rieumont
You can check out Captain David himself from his incredible and very popular Patriotic Angler podcasts. They cover every bit of fishing you can imagine, and there are new ones being created constantly. David and his team remain one of best resources any fishing community has anywhere in the country.