Just trying to get an idea brand of line and poundage you use for your swimbait fishing.

I'm here in Southern California and biggest lure I use would be a Huddleston 68 trout.

I was thinking of using 15-20lb P-line, would this be a good choice? I need the line to be an all around line, so copoly or mono. Not interested in fluorocarbon. 

That line will be perfect for swimbaits. 

try some Gamma co-poly , strongest line per diameter on the market , low stretch , and not too much memory . try some 17 lb. line , you'll love it ....

Maxima ultragreen 20# is what I go to 

15lb CXX would be fine. No fish is breaking any of the line people recommend. The thing you want to avoid is watching your Hudd go flying off into oblivion not attached to your line anymore. 

I use Sunlne Armilo Defier Nylon 25 lb test , .016D,  for all my swimbaits, rats, glides and wakes.

Tom

Any of the above listed.