Hi jcat_3,
Assuming that the materials in a mattress you are considering are durable enough for your body type and meet the quality/durability guidelines here relative to your weight range … the choice between different types and combinations of materials and components or different types of mattresses are more of a preference and a budget choice than a “better/worse” choice (see this article).
If you are in a lighter weight range with a more curvy shape and especially if you sleep on your side then you would probably tend to do better with mattresses that are in a softer range with thicker/softer comfort layers that will allow you to sink into the mattress more easily to relieve pressure points and to “fill in” the gaps in your sleeping profile (such as the waist) than someone that is in a higher weight range that will tend to sink into firmer materials more deeply.
While it’s probably more than you “need to know” … there is more about primary or “deep” support and secondary or “surface” support and their relationship to firmness and pressure relief and the “roles” of different layers in a mattress in post #2 here and in post #4 here that may also be helpful in clarifying the difference between “support/alignment” and “comfort/pressure relief” and “feel” and how they interact together.
While I can certainly understand the desire for someone else to make the choice for you or to make specific recommendations and I wish it was possible based on some type of “formula” … unfortunately it’s not and the only way to know for certain whether any mattress will be a suitable choice in terms of comfort, firmness, and PPP will be based on your own careful testing (hopefully using the testing guidelines in the tutorial) or your own personal experience because you are the only one that can feel what you feel on a mattress.
As sad as it may be … most of the members here that have spent a couple of hours or more on this site will probably know more about mattresses and mattress materials than most of the salespeople in the mainstream industry that sell them :unsure: .
Phoenix