Hi Kriswku,
Before it’s possible to assess the “value” of a mattress … you would need to know the thickness of each layer (some are missing) and the density of the polyfoam layers in the mattress. This is because it’s important to identify the “weak link” of a mattress because no matter what it’s “commodity value” … part of it’s value is how long it will last and keep its original properties. If I’m not mistaken … some of the polyfoam is 1.5 lb density and the convolute is 1.8 lb density and in layering that is too thick or too close to the surface … both of these could lead to foam softening issues (depending on the thickness and firmness of the layers, where they are in the mattress and what is above and below them, and on your own body type and sleeping habits).
I think some of the comments in post #17 here and the posts that follow may be worthwhile.
If you have tested these specifically for Pressure relief, Posture and alignment, and your other Personal preferences (see post #46 here) and they are all “equal” … then I would tend towards the mattress that had the least amount of less durable materials … especially in the upper layers of the mattress.
In the Lady Americana Majesty and the Heiress … there is more polyfoam closer to the surface with no latex to take the brunt of the ongoing mechanical compression and wear and tear from ongoing use so I would personally tend towards the two mattresses with latex in the upper layers (under the quilting foam). This construction would be more durable (and for some would also be more comfortable because of the qualities of latex).
To choose between the two with latex (Florence and the “second” Majesty at the end of your list) I would want to know the missing thickness and density information in the descriptions. I would also want to know the coil gauge.
They also have a different support layer (one is a pocket coil and one is polyfoam (which is missing the density information) and the “value” of each of these to you would depend on which type of support core you preferred.
If you can supply the missing information about both you and the mattresses and details of any differences you can feel between them (testing for pressure relief, support/alignment and your other preferences … fully relaxed for at least 15 minutes on each in all your sleeping positions and with some movement so you can see how each support layer responds differently) … I’d be happy to give you some further thoughts.
Based on the “ingredients” of The Telluride (and subject to filling in the information gaps with the Bowles mattresses) … it certainly has a less “risky” construction and if it provides the equivalent PPP as the other choices you were mentioning … it appears to me to be a better value choice (again keeping in mind that how a mattress performs and feels is just as important as its "commodity value).
Phoenix