I really like the search preferences, but they would need to implement something that would stop a party of 8 searching for parties of 1 or 2.... You know... People exploiting things...
I don't mind playing highly ranked people (because I myself am a Noble), but when it comes to a party of 8 vs a few parties of 2 or 3, the party of 8 could be less skilled, but they have a significant advantage due to communication, and would probably win.