As far as castability, abrasion resistance, and strength, which do you prefer?

I've never used cabela's pro line, only BPS excell.  I've had mixed results.  The spool I have left I use for backing.

I checked Proline on your poll but I really use the Proline co-polymer.   ;D  I have been using this line for several years and it works great for me.  I like the fact that I do not seem to need to change the co-poly as often as mono.  15 lb  for spinnerbaits & rat-l-traps  and 8 lb or 6 lb on my spinning rods ;D   A 1/4 pound spool for less than $10 seems like a good deal to me. ;D

I know that this one is not on the poll but McCoy's Co-Poly is a great line to try, low stretch and low memory. I don't use any of the two you mentioned.

Chow