in no particular order, oticon, phonak, and widex are regarded as the best.
siemens and resound occupy a second tier.
beltone and unitron take a third tier.
i think costco started selling resound.
the VA actually usually dispenses top line hearing aids. service is rather variable, though.
DO NOT BUY A MIRACLE EAR. they are just as expensive as the top line hearing aids, but inferior in quality and features. they have to pay for those TV ads somehow, right?