I would say put your domains at Sedo for a month, then try NameDrive for a month as those are 2 companies that both use a Google feed and anyone can get approved at. After you have tested those 2 then try to get other Google accounts like Fabulous and Domain Sponsor. If you can't get approved for any other Google accounts besides those 2 then move on and try to get Parked, Trafficz and SmartName as those are Yahoo feeds. Basically try to get any account you can and do a month test at each. If we are talking who I prefer for templates/features my favorites are SmartName & TrafficZ but both use a Yahoo feed and it's always good to test a couple providers from Google & Yahoo as there are differences between a Google & Yahoo feed on certain categories of domains. I see the low clicks at Sedo and NameDrive that everyone talks about but I also see $7+ clicks on a few names there and I also see low clicks at some of the higher end companies as well so I don't think any company is the answer for all of your domains. You have to test and split them up for maximum revenue. I do dig the direction SmartName is taking as they have Regular parking that uses a Yahoo feed, Ecomm parking that turns your product domains into stores powered by shopping.com in minutes and they have Content parking which can turn your domain into a content site in minutes that pulls rss related feeds/adsense etc... I think the regular parking will produce the highest $ per click there but it's nice to have options as I am noticing some of the Ecomm & Content sites I have done there getting indexed better than a standard parked page which means although $ per click may be lower then regular parking with the Yahoo feed I am seeing more clicks from being indexed in the search engines and it's a good defensive measure to have your better domains look like real stores/developed sites over just being a plain parked page. I will be turning my best domains into stores/content sites there as I am not motivated to sell those and would rather have those look like they are being used. The domains I wish to sell I will use standard parking at various companies. Get any accounts you can and test around for maximum revenue. Above.com is something to keep an eye on as well as it makes testing different providers a bit easier or makes rotation automated. I prefer doing my own manual testing as all my domains are optimized at 8+ companies but for people with less time or those that don't do this full time Above.com could be the answer or a company to keep an eye on. I have an account there but haven't given it a full test yet. Not sure what feed Bodis is using these days but another company with representation at the forum to try. The only way someone can say 1 company is the best is if all their domains are in the same category. My portfolio hits so many different categories that I can't say 1 company trumps the rest.