The only Braid that I have found that I personally like is Power Pro Super slick. I get it in Aqua Green and use it in 20#. I also use a Fluorocarbon Leader with the braid and I use 8# Vanish Gold by Berkley.
See my post Triple Limit from a couple weeks ago. We put 75 in the boat using this set up.
Like anything in fishing it really is a personal preference.
I do use the leader. The lakes I fish the leader does make a difference. Other lakes it might not make any difference.
We had 3 of us fishing in the boat. Dad and I with our Braid Fluorocarbon set up. The other guy straight braid to jig.
We had 15 fish in boat and he had zero. Tied a leader on his line and he started catching fish.
That being said I do think the stain of the lake plays a role.
Tight Lines with whatever you decide to use.