I would add to the list the Audio Excellence/World Power receptacle(s), of which the cryoed 5362 is identical to the Jena Labs at half the price. For what it's worth, the Virtual Dynamics, Jena, and Purist are all cryoed Hubbells (5262 or 5362), the PS Audio is a stock Hubbell 8300 with extra nickel plating, the FIM is a Woodhead 5362 with some changes I've never been able to establish, and the Wattgate, if I was a betting man, would bet to be a Leviton 8300 with gold plating and a modified front saying it is "blue star audio grade".
FWIW, I have used the stock Hubbell 8300 and am now using the double cryoed Audio Excellence 5362's and they are, believe me, worlds apart, although the 8300 was the best standard receptacle I have used. I've had an Audio Excellence at the wall in my system for about 45-60 days (posted a review here in the review section) and just slotted a couple into my line conditioner in the past 10 days with phenomenal results. I would highly recommend them at $55 and $60 respectively. I can basically run my system off two receptacles and can honestly say that this $110 has been the best money I've ever spent and the biggest bang for the buck I've ever had in audio.