#5
Titanium Coated strings last longer and feel better but cost more. They go for about 10$
#6
i dont use EBs due to the fact that if you sweat alot them can rust if its acidic sweat, thus lasting not long at all.

honestly use D'adarrios standard 10-52 or 11-50 range, they are really good plus are slightly cheaper than EBs.

but if i had a gun to my head id use Power Slinkys
Guitars
Custom Les Paul
Custom ZW Bullseye
Brunswick BD200CE
Epiphone ZW Custom Camo
Custom Fender Highway Tele Daphne Blue
Parker Nitefly M
Squier Classic Vibes Strat W/BKPs
Ibanez SZR720QM W/EMGs