Hi Bdunai,
A mattress is only as good as the suitability of the design for your needs and preferences and the quality of the construction and materials inside it regardless of the brand name on the label. Once you know the specifics of all the layers and materials then you can make meaningful comparisons with other mattresses that use the same of similar materials and designs.
There are too many unknowns and variables for anyone to recommend specific mattresses for anyone out of all the thousands that are available (see mattress firmness/comfort levels in post #2 here) but post #1 here has all the basic information, steps, and guidelines that you can use to make informed choices and meaningful comparisons.
The only “official” recommendations I make are the members of this site which means I believe they are among the best quality/value available either locally or across the country but there are also many other great quality/value mattresses available across the country that aren’t members (at least yet).
Both Innomax and Plushbeds tend to use good quality materials in their mattresses but so do many other manufacturers (usually smaller independent manufacturers) so your “best” choices would depend on the specifics of the mattresses you are looking at and how they compare to other similar mattresses that are available to you either locally or online.
Phoenix