I been using power pro exclusively since it came out. I keep on trying other brands but always go back to power pro. We use 10 pound on our ultralights, 15 for medium spinning, and 30 on level winds and larger spinning reels for catfish and stripers. Most likely when I spool up our level winds for bass they will hold 30 as well.
Generally buy the 1500 yard spools on ebay but once in a great while Amazon might be cheaper.

My biggest fear is when I die my wife will sell my guns for what I told her they cost.