The only person who can tell you what's in those "soils" is the supplier. So, ask them/him/her.

Also ask which they suggest for the use you intend.

What they are selling is mostly what you already have plenty of, the mineral portion of soil. The "garden soil" stuff might have had maybe 5 percent organic matter added to it while the "mushroom soil" may well be mushroom compost with a lot of the mineral part of the soil equation added. The only way for you to know would be to ask for samples (aboutr 1 cup) and the soil test to determine what is there.
I would not spend my money of anything other than compost or leaf mold, something that would benefit the soil I already had and certainly not on something that would add more of what I already had, the mineral part, when what my soil needed was organic matter.

jean - I called up the company and was told that the mushroom soil they sell is strictly for amending and the garden and lawn mix they have is what I want for the raised bed.

kimmsr - I am going to be making a raised bed and therefore I do in fact need more of what I already have... as it's not enough to make up the volume of the bed I'm intending to end up with.

Thanks for the replies!

ttfn
Cheryl.