The best gun is one that has yet to be invented - but I am the first one to think of it. Make note. It would be a very light gun - maybe 2.01 lbs. This would make it very easy to carry in the field and easy to shoulder and fast to swing. It would be a boon for small, crippled women under 5'1" who don't have a lot of muscle tone, and for most other sportsmen.
But wait - here's where it gets clever. The gun would have a magentic forend and receiver. The hunter would carry in his free hand a 20 lbs. block of iron. Most any type of magnetic metal would work, but I am sure there would soon be a market for base model chunks of pig iron and also very fancy blocks of the finest German steel engraved with dogs by artisans. Just before firing the gun, the shooter would simply affix the chunk of dead weight to the underside of the gun, thereby increasing the weight to over , well 22 lbs., making even the most ferocious Magnum loads seems like child's play.
This gun would placate the recoil whiners and the weight whiners alike. Think of it as a female Republican Barack Obama.