A tried true and tested V8 engine, proven, that runs on regular gas, regular oil, has a low cost of maintenance, has 4 cylinder deactivation as part of its engineered design (not a mickey mouse add-on to a previously existing engine), dyno's higher than FCA's stated HP/Torque ratings, that uses SAE tow ratings with fluids, tail-gate, and all production components installed (do your research, some strip out their trucks prior to testing, and not all use SAE), and only has one recurring issue in head gaskets.
I think it's a no brainer we have the best V8.
I think you meant to say exhaust manifold gaskets and studs. As far as I know there aren't any headgasket issues with Hemis.