Just FYI - the Nextcast Core 30 is a longer belly Skagit line. With tips your total casting length is 40-45', which for me is a lot more enjoyable to cast with 14' + rods.
I really like the Airflo Rage, but only for polyleaders (it's a Scandi line, not Skagit). It's my summer go to line for fishing surface patterns, and it will throw sinking polys or light tips if needed.
I'm only familiar with the Bridge lines from what I've read, but their Wintertide line sounds like it might be comparable to the Core 30.