What Brand Of Hearing Aids Are Audiophiles Using?

It depends on your expectations. In a general way I would say yes. My ears know the difference between the sound of my system and the reproduction of it coming through the hearing aids. When I am aware of that, it isn’t as enjoyable.
I have tried an EQ adjusted to my hearing loss. Don’t waste your time. If you think that the hearing aids might be off, wait until you try an EQ this way. I am sure that it could be fined .... forever on!! Worse than an old Quadrajet carburetor.
For the record, I will state that my hearing aids are made by Widex. Top of the line. Oh boy, do we have a long ways to go. $6,200 for this?

For some years I was reluctant to get hearing tested though I knew there was at least some hi freq loss in one ear. I was afraid it would make music sound tinny. But recently I got great quality hearing aids and now I don’t listen to music without them.
They are computer controlled with 50 bands of equalization custom tuned to my hearing response. They dynamically distinguish between background noise and direct sound (music or voice), and only kick in to boost non-background sounds.
Oticon $7000 - worth every penny. I use them at concerts, home stereo use and in noisy environments. 

Ps: The Oticons are practically invisible. They also enable me to evaluate subtle differences as I modify my stereo system

You guys have been fantastic and have really given me some things to think about.  The Oticons sounds like something I would want to go with if I need to, but the price, ouch!  If my hearing ability is 11K at best, how come I can still hear the snap in the treble, lush midrange, etc.?  How come I can still hear differences in cables and platforms and such if I can't hear that high anymore?  What to you guys think?

Ok, so you have a drop off at say 11k. That is like saying you know the sound of an amp because you have this ONE reference spec... at 11k. What you need to know to get a better idea of YOUR hearing loss, is a complete test. For example, I have quite a dip at 4k, one of the reasons that the hearing aids do help me out. If you look at a frequency graph or chart that denotes the pitch range of different instruments, you will see that 11k is nowhere near the midrange. And cymbals, though I can't state their given range offhand, start much lower than 11k as well. But of course their range does extend past 11k.
 Usual hearing tests even at the audiologist are from 250hz- 8khz. They are not a very broad range because their clients (and the hearing aids themselves) are only designed to enhance things in daily life such speech. You and I know that there is a vast amount of sound above and below that limited range. It occurs IN daily life and of course music as well! Trouble is, the thinking for this industry is sooo behind the demand for a much better product. Once again, even though we might demand a better product, we are not in the majority by a long shot.