I like Ande Premium in Envy Green - http://www.basspro.com/servlet/catal...=SearchResults,
I use 6-pound for vertical jigging. It's very durable line and holds up well in the sun, which is important to me because I'm on the water nearly every day and some lines get brittle fast when they're in the sun very long.
Any line is going to get "line twist" if:
1) Your bait or lure is rotating on retrieve (or descent while vertical jigging).
2) You are catching fish that are continually pulling your drag and/or you're continuing to reel when the drag is slipping (open or closed face spinning reel) .
3) You pull out line by using the drag instead of opening the bail (open face spinning reel) or pushing the button (closed face spinning reel) or pulling the trigger (under-spin spinning reel).
Every time your drag is working (line coming off the spool as it rotates instead of spooling off) on any type of spinning reel your line is getting twisted.
All three problems can be corrected by eliminating the cause or by stopping your retrieve just as your bait or lure comes out of the water and holding it there for a few seconds until it stops unwinding before retrieving it on up to the position you have it in when you cast.