Peak horsepower tells nothing useful about how a vehicle will perform as a platform for towing, what is more important is torque, and especially low rpm torque.
The old 12 valve cummins 5.9 liter diesel made ~220 hp, well down on the frontier's 260 hp. But, that engine made 440 ft/lb of torque and made that torque across the rpm range. I can guarantee a vehicle with that engine would handily out tow the 260 hp V6.
Yes, that was my point. Torque is far more relevant when talking about towing, and not just peak numbers but how the torque is distributed across the powerband
