Hi colchao,
You are down to final choices between “good and good” which means that all of the mattresses you listed are good quality and value and none of them have any obvious weak links in terms of the quality of the materials.
Post #2 here can help you make final choices based on all the objective, subjective, and intangible criteria that are most important to you. There is no longer any “better and worse” choices … only choices that for your own personal reasons are more attractive to you. None of them would be a “mistake” in terms of quality or value but only you can decide which is best for you.
There are different types of “support” (primary and secondary support) and the different types and degrees of support in different areas of the mattress under different parts of the body are the means of accomplishing one of the goals of a mattress which is good spinal alignment. You can read a little more about both and the relationship between them and pressure relief and how the different layers of a mattress combine and interact to contribute to all of these in post #4 here.
Phoenix