W4S or Rega Dac - Opinions Wanted

I currently own a W4S DAC-2 and had the Music Hall DAC for audition from Audio Advisor. I returned the Music Hall, and I didn't have the W4S at that time.
My opinion is that W4S is significantly superior.
For me, W4S DAC2 in async USB directly into the W4S ST-500 works wonderfully.

I had the Rega dac and was very happy with it; I liked the NOS design so well I sold it and ordered a Metrum Octave which is NOS and also uses no filters. Still waiting on it to arrive.

DACmagic "plus" with a Pangea P100 power supply. I use the stock DACMagic/P100 combo as I don't use the usb, but the "plus" has an asynchronous usb system, and the P100 cable should be available for it soon (if not already).

My friend and I compared the W4S DAC II against the Rega DAC in my system, which is Manley Stingray II tube amp with Merlin TSM-MXr speakers. If you hunt around you can probably find my comments, but we found the top end of the W4S a bit much and the Rega's soundstage was just broader.
My friend still owns the W4S, which he uses in a smaller system. He feels the top end got smoother over many hours and he even preferred it over the EE Minimax Plus, which he then sold. We both did a lot of comparing of DACs and he ended up with a Rega, but also continues to use a more expensive ARC DAC. My key findings are quite simple: Differences between good DACs are very subtle, perhaps to be equated to the differences between good DSLR cameras. I think most people would be shocked to hear how well the Dacmagic compares to those costing much more, and that's one of many examples.

Cheers,

Rob