I agree with fish, kind of, lol. Minus the personal opinion, looks aren't part of the OPs question.
There are more capable HD gassers, namely both Ford and Ram, but ONLY in the power department. Chassis wise they are all on par.
And the difference isn't like from gas to diesel, it's nominal.
Since the OP is not ready to buy yet, both Ford and GM have stuff in the works to one up the Ram, the current hp leader.
IMO a hot rodded 6.2 LS motor isn't the answer, but a big block 7.xx ford gasser may stomp the other two right out of the box.
That should be a 500/500 engine at sea level!