Hi alavio,
The specs you listed all indicate good quality materials but post #4 here has the information I would need to make any specific comments about the quality of the materials in either mattress or whether either one has any possible weak links.
If the materials you listed are all that is in the mattresses and all the layers and components add up to the thickness of the mattress so you know there is nothing missing then there would be no weak links in either one.
Which manufacturer/retailer are you dealing with?
I’m not sure what you mean by “blue foam rods” on each side … can you provide more details? If you are referring to an foam encasement around the innerspring then I would want to make sure that it also used high quality polyfoam (1.8 lbs or higher).
Phoenix