This is an over-exaggeration on my part and I should try to remain accurate. It would probably be more correct to say that the majority of the top sites I pull up from 'Architectural Rendering' in Google happen to be listed in the ODP category I applied for. Ocassionally a few slip through rankings that have made it to a front page of a 'major website' - such as mine briefly did when I made it onto CGArchitect (which is listed in the ODP) headline news. I shot up to the top 50 for several different search terms. But as soon as it became older news, my site could not be found in a search of over 8 million results.
Again this brings up the 'chicken or the egg first' argument for some of you. But no one that who has looked deeply into this topic will say that ODP listing doesn't have some major effect on rankings.
The top link I pulled up was howardmodels.com which is listed in the ODP - one out of 168 links. By all means, this site is guilty of many of the keyword stuffing/spamming techniques that many search engines actually lower/punish rankings for (including Google.) So I've analyzed the code attempting to determine why this site persists in one of the top spots. My conclusion is that there are many factors which go beyond the ODP listing, but this ODP listing is perhaps one of the most important reasons for its persistance.
Other sites which don't even have meta keywords, meta description, an abundance of related text, properly balanced keyword ratios, an adequate number of backlinks, pagerank, proper alt attributes, page titles, website age, and heading attributes also pull up in these top spots. For all intents and purposes - they shouldn't be listed in the top 200. They should be at the bottom of the 8 million+ search engine result pile.