I’d take the Kirkland Signature 7 over the Unitron Moxi 500. The Unitron is a much more basic aid.
Which Audeo B? There are B90, B70, B50, and B30 and also rechargeable ones that are B90R, B70R and B50R. If it’s a B90 or B90R, I’d definitely take that over the Brio 2.