MFSL Gold cd or Current Japanese CD?

I have all the recordings from these companies and my choice would be:

1) K2HD
2) XRCD
3) MOFI
4) SHM-CD

Lenny,
I guess you have your answer. Sometimes I do wish it was that simple.
BTW: There are very few K2HDs available. I had one, I personally didn't like it much.
As far as XRCD, there are XRCDs, XRCD2s and XRCD24s. Also, there are "old" Mofis (Mobile Fidelity Sound Labs) released by the original Mofi and "new" Mofis released by its current owner (Music Direct). Also, you didn't mention DCC (Dunhill Compact Classics) which also released some fine sounding CDs.
Argyro,
Could you clarify what you mean by "I have ALL the recordings from these companies..."?

I've got about a dozen of the SHM discs so far and I have to say that they are clearly better than any other previous versions I've had, regardless of title. But I cannot compare them to anything Gold. I have four more SHM coming in the next week so I may have something to add then.

Right now I am playing on a Sony C555es (SACD/hybrid carousel) and am planning an upgrade of some sort. My immediate goal is to put a DAC into the mix as the Sony transport section gets high marks and I like the flexibility of the changer. My local shop just brought in the new Music Hall DAC and I can demo that for 30 days.

I'm most curious to hear how the DAC will treat redbook discs of varying specs and VERY interested to hear how the SHMs sound. If there is as much uptick to the SHMs when played through the DAC I suspect I'd consider the whole thing a gamebreaker and have to spend a lot of money going forward in order to upgrade my preferred titles (no snall process or expense). I do think the potential is that high. I'll report back.