Why would you be biased exactly ? you work at Sedo or at Go Daddy ? If so, tell us, both have reps and forum readers here so you won't be getting a slew of complaints in your mailbox all of a sudden lol
As Adam nicely put it, Sedo is the obvious choice (and I am NO fan of Sedo's at all), it is like dying a slow death, and unless GD pulled a hat trick recently or revamped their entire Cash Parking it is a waste of time/$ for most, and I'm not even attacking them because they're the only ones who charge for straight parking --for such service no one should pay-- I get it for free w/the GD Domain Disc Club. Sedo Pro does work for some people, good for them if they have so many names and are assigned a parking executive rep to help monetize their names, I don't qualify for it but my buds have showed me the templates, I am not missing anything lol !
There are no "top 3" or even "top 4" pkg companies like I thought when I was a noob, people have different experiences, but if you're not gettin results w/Namedrive, DomainSponsor, Bodis, Voodoo, Sedo (and even DomainApps and its Bing feed) then there is no reason you should try others ... and w/revenue as non-existing as it is, wouldn't you wanna present your names for sale w/attractive parked pages (Namedrive has those) to your buyers, even if a dull, plain, quintessential parked page, like Bodis or Sedo, gives you an extra $0.10/mo ?
Neither GoDaddy nor Sedo are better, but I am not allowed to say which "other" is better as I am clearly biased