Which DSP for Room Correction?

Which DSP is best for room correction:  Lyngdorf RP-1, DEQX, DSpeaker 2.0 Dual Core, Legacy Wavelet, or what?

Or, are they all about the same?

MiniDSP SHD, ~$1000 with the mic and includes Dirac; and it’s DAC is proven to be clean.

Unless I’m missing something, I don’t see a benefit in going for a higher quality DSP software than Dirac.
DEQX.  1.  Buy an Earthworks mic. 2. Have Larry Owens dial it in by taking over your computer. 
Do all of these work off a pc with a mic?  There’s a similar thread in the speaker forum that could use some experienced help.