Winchester Model 12
It's a nice pump gun, but it doesn't fit everybody by any stretch, and it's certainly not the end-all of shotguns.
Remington 700
Yes, if you are going to do a custom build, you may have to go with a 700 so you can get a lot of high-tech stocks and easy-to-find handmade parts. But if you just want to buy a decent bolt gun, your money can be much better spent.
Remington 870
Good pump gun for everything from trap shooting to HD. But it seems that polls here often rate it "the best shotgun" or the like. Come on, people. That's like rating the Toyota Corolla as the "best car in the world." Toyota deserves praise for building a high-mileage, reliable, even fun and comfortable car for 15 grand. But it's not a Lambo or anything, even if, dollar for dollar, it actually offers more than a Lamborghini.
Ruger GP100
Strong, 100 bucks less than a Smith, but it's clunky as all get-out.
Now that doesn't mean I wouldn't and don't own one or more of the above. I'm just looking at what I think is overrated. That doesn't make a gun bad by any means.