Hi LizW,
Brooklyn Bedding and Arizona Premium are both members of this site which means that I think highly of both of them.
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). The best way to know which type of materials or which type of mattresses you tend to prefer in general terms will be based on your own testing and personal experience because different people can have very different preferences.
While I can’t speak to which of them you may prefer or to which of them would be a better “match” for you in terms of their comfort, “feel” or PPP (your own experience is the only way to know this) … both of them use high quality and durable materials that would be suitable for your weight range and there are no lower quality materials or weak links that would compromise the durability of either of them. A pocket coil would also be a more costly component than a polyfoam support core and the pocket coil they use also has narrower diameter coils on the edges which provide additional edge support.
There is more about latex/innerspring hybrids in post #13 here but in very general terms a pocket coil would be more “springy” than a polyfoam support core.
Once you have narrowed down your options to a list of finalists that are all choices between “good and good” and none of them have any lower quality materials or “weak links” in their design and if at this point there are no clear winners between them (which is usually a good indication that you have done some good research) then you are in the fortunate position that any of them would likely be a suitable choice and post #2 here can help you make a final choice based on your own local testing and/or your more detailed phone conversations about each of them, the firmness and suitability of each one, their prices, your preferences for different types of materials and components, designs, or types and blends of latex, the options you have after a purchase to fine tune the mattress or exchange or return the mattress or individual layers and any costs involved, any additional extras that are part of each purchase, and on “informed best judgement” based on all the other objective, subjective, and intangible parts of your personal value equation that are most important to you.
Phoenix