Basis Debut Mk v or Walker or Brinkman ?

I do not sell Walker, Brinkman or Basis. I do sell Grand Prix Audio.

While I like all the tables you mention, I would probably recommend in this order:

1. Brinkman - Easy to setup, excellent build quality and sonics.
2. Walker - Excellent sonics, very difficult to setup unless Lloyd does it for you. Very tweaky. If you move or paint your room, could be very frustrating. If you purchase, you get, as a bonus, Lloyd's wonderful sense of humor.

3. Basis - Not quite at the same level as the previously mentioned, but rock solid reliability.

I would be remiss to say that I feel the Grand Prix Audio rivals the best tables I have heard. It is a direct drive table that keeps, probably, the best speed and pitch of any table on the market. I feel this is the most important function of a turntable.

The good news is there are no bad decisions on your list :)

Jonathan Tinn
Chambers Audio

There is also the Kuzma Airline reference turntable.

Like Rushton, I'm a Walker owner of long standing (9years). I have a friend with the full blown Brinkman system but have had no experience with Basis.

A couple of personal observations would be that the Walker is not really that fussy to set up but is revealing of changes in setup. Not every change is night-and day for better or worse, just different. I guess many would claim that there is only one optimal final setting but I don't subscribe to this. At any rate, I defer to Lloyd.

Without going into extreme and exhaustive descriptives, I would say that the one thing that the Walker table imparts unlike any other source in my experience is a sense of gravitas, of informational density, of musical mass. As the table itself is massive, it passes on this substantiveness and foundation in its delivery.
But this quality is most definitely not burdened with a plodding pace or inertia. I hope you get a chance to hear one sometime. BTW, I do not feel qualified to discuss the Brinkman setup because I've only heard it during audio club nite, which in my locale amounts to nothing more than a fraternity smoker with power conditioning thrown in.

I own the Brinkmann, (actually, I have a LaGrange, because I wanted two arms--I previously had the Balance) and owned the Basis (and an SME 30, Rockport Capella, and some others). I've kept the Brinkmann for 3 years now, and have no intention of changing. I guess I agree with Jonathan Tinn then, but, I have no experience with the Walker--I no longer want to deal with air bearing arms, I'd just rather listen to music

Like the others above - I am a Walker owner, so my comments should be taken in that context. The Walker is the least fussy playback system I have ever owned. It holds its VTA, speed, VTF settings rock steady. Music does get altered in presentation by minute adjustments to VTA. While the VTA adjustment is not on-the-fly, it is quick and easy. The air bearing arm is no fuss and the compressor pump is as good as it gets, very stable and reliable. Best of all, when you purchase the Walker Proscenium Black Diamond, Lloyd and Fred come and set it up. They don't leave until it's right and they are satisfied. In the year I have owned mine, no adjustments have been neccessary, not even to the speed. All I have changed is the VTA, to suit different LP thicknesses.

The above is my personal choice, but your other choices are world class turntables as well...