I have been using PowerPro for years and have had good results.
I have used 20lb. for Ocean Fluking, 40lb. for Blackfishing, 60lb. for Codfishing and 130lb. for Halibut fishing.
I have found that Fireline is better for Wreck Fishing since it is fused instead of braided. PowerPro is okay for Wreck Fishing if you use a 5' leader and check the line often for cuts.