Hi Quickstrike,
While I can’t speak to how any mattress will “feel” for someone else because this is too subjective and relative to different body types, sleeping positions, and individual preferences, sensitivities, and circumstances … outside of PPP the most important part of the value of a mattress purchase is durability and assuming that the materials in a mattress you are considering are durable enough for your body type and meet the guidelines here … the choice between different types and combinations of materials and components or different types of mattresses (see this article) are more of a preference and a budget choice than a “better/worse” choice.
There is also some information in post #3 here and the posts it links to that should be helpful for those that are in higher weight ranges. Higher weight ranges will generally need or prefer firmer mattresses (firmer materials will feel softer because you will sink into them more) and materials and components that are higher quality and more durable than the minimums in the guidelines because the materials and components in a mattress will soften and break down faster for those in higher weight ranges than they will for someone that is in a lower weight range that doesn’t compress the mattress as much.
If you you don’t like the “feel” of memory foam (and there are many that don’t) then I would choose a mattress that either didn’t include it or where the type or amount of memory foam wasn’t enough to cause the “sinking in” feeling that you don’t like.
Phoenix