RockAuto has the ACDelco Professional on wholesaler closeout for $10.33. The Raybestos Professional are on wholesaler closeout for $14.63 or $45.89 regular price. Both are the same brakes, and both are semi-metallic. These brakes are rated daily driver.
If you are towing heavy in the mountains, I would definitely buy something with high fade resistance, and you might want to look into Fleet/Truck/Towing/Severe Duty brakes. Wagner Severe Duty are $27.79.