What type of CAMERAS do you think is the best for the beginner?

There is no 'beginner' DSLR, the beginner will use the intelligent Automatic mode for the first few weeks and then gradually learn semi-automatic program scene modes, then Aperture and Shutter Priority and then Manual Mode.

The things that make a DSLR nice to use are a big optical viewfinder with a real glass pentaprism. So Pentax, Nikon 7*** series and Canon 70D/80D etc. Better too are cameras that have 2 physical control wheels for settings and a top plate data display. eg. Canon 70/80D. A fully articulating LCD is important for video blogging and for awkward angle (less boring) shots. Note that unlike Canon, Nikon does not emulate the effects of real time settings changes in the LCD panel. The old way of shooting was to set the camera up, take a shot, check the photo in the LCD, then reset to better effect for the next one. You can also see a histogram in which the graph just needs to be prevented from crashing into the edges before it comes to down to the base line.

At the cheaper entry level they are more menu-driven, have much fewer autofocus points and other special settings. It will not be so heavy though.

If weight of camera is important and you don't mind carrying an extra battery (because electronic viewfinders drain them) then the little mirrorless camera: Sony A6000/A6300 will produce image quality on a par with the best mid-range DSLRs

Visit http://www.dpreview.com to compare the cameras against each other and see reviews.

Good luck on your journey into better photography;
This site will help greatly with technique:

https://luminous-landscape.com/

There are no "bad" DSLR, nor is there really a "beginner" category either. You should buy a camera that meets or exceeds your current or near-future needs. For example, if you're only into shooting portraits and landscapes, you'd want to get a camera with a high level of megapixels. However, if you're into sports, then you don't need the high MP count, what you need is a fast AF system with a fast shutter speed and a fast continuous shooting speed. You won't find both in one camera. All DSLRs are better at certain types of photography than others, but there's no one that is great at everything.

As a beginner, you're like to not have a real good idea of what types of things you want to shoot. And as is evident by your question, beginners really don't understand, yet, what features are needed to make great photos. Therefore, it's best to buy an entry-level DSLR such as the Pentax K-50, Canon T series, or the Nikon D3xxx series. All are going to be good enough for your needs today and a few years into the future.
My personal favorite is the Pentax K-50 which, when compared to Canon and Nikon's entry-level models, it has the fastest shutter speed, fastest AF, and shoots at 6fps while the others are only at 3fps. The K-50 is weather/dust proof while the Canon/Nikon models aren't. But the biggest deal with the K-50 is that it has in-body image stabilization which moves the sensor to stabilize the image. This means that every lens enver made by or for Pentax SLR or DSLR will be stabilized. You'll be able to shoot at ISO 400 while the Canon or Nikon person without a stabilized lens will have to be ISO 3200. That's a huge difference in sharpness, color, contrast and especially noise. You really do get a lot more for you money with Pentax. Since the camera is so jam packed with useful features, you'll be far less likely to outgrow it over the coming years.

If you can afford it, the Pentax K-50 dual lens kit (18-55/50-200mm), will last you a lifetime.

Not only are body and lenses weather-resistant (the only DSLR in its price-range which is), but compare it to Canon and Nikon models at the same price to see why.

There is no beginner's dSLR. All dSLRs are basically the same. If you are serious in learning photography, get the most expensive dSLR you can afford.

http://www.bhphotovideo.com/c/product/982535-REG/pentax_10950_k_50_digital_slr_camera.html

Don't be fooled by the "entry-level" classification. It refers to budget, not skill level.