Peter,
Without going into details of your specific domains, because I don't like to do that on a forum. But you are comparing a 2 click domain that you have changed to a completely different topic to a NameDrive 1 click page, that even though you recommend to them a keyword doesn't mean that's what they are going to use. So I am assuming that they will probably have results for the recommended keyword and the original domain keyword as well. So I can see how in cases like yours and a few others where a Google based provider should beat parked.
Now if you had the real domain keyword set and their were advertisers for that keyword (in your case there is), I think we would beat NameDrive in most cases.
Another example is if you have a domain that means absolutely nothing most 2 and 3 letter domains. Those in most cases would do better on a Google feed as it's why I call "crap traffic".
Donny