Hi SON,
Unfortunately I can’t feel what you feel or see you sleeping on a mattress and there are too many unknowns, variables, and personal preferences involved for someone to be able to suggest which mattress is “best” for you in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences) using specs (either yours or a mattress) or “theory at a distance” (see mattress firmness/comfort levels in post #2 here). The only way to know this would be your own careful testing on each mattress (hopefully using the testing guidelines in the tutorial post).
There is also more in post #2 here about the two main strategies that you can use when you are caught “between a rock and a hard place” and need to exchange a mattress at a store that has few if any good quality/value options available. If you follow the suggestions there then you will be much more likely to choose a mattress that is not only a good match for you in terms of PPP but also uses higher quality materials in the comfort layers so that it will be both a suitable choice and a durable choice.
Finally post #13 here also has more information about the most important parts of a mattress purchase (or exchange) which are suitability, durability, and then all the other parts of your personal value equation that are most important to you.
This should give you the tools you need to be able to make the best out of a difficult situation.
The first thing I would ask though is which of the mattresses you listed is the best match for you in terms of PPP and why are you exchanging the mattress you have?
Phoenix