When we were deciding what braid to use for Halibut, line diameter was as big a concern for us as any other factor. Here in WA we typically fish a little deeper than you guys up north so you can see were this is relevent.
We decided on power pro simply because I took a micrometer to all the popular braids, and of the ones I measured, PP obviously was the thinnest on average.
It has held up well, doesn't have the "dig into itself" problems I've had with other braids.
One thing about TUF line that I do really, really like is the price per yard.
Through a guide program discount from a certain retailer, TUF is about 15% cheaper for me than the PP is per yard.
I just stick with it because I can squeeze more of it on a reel, and confidence.
We use 80lb on 340gti's with pelagic series loomis stand-up rods. 30lb on our inshore bottomfish rods.
(Voted PP)

J.D.