For Sale Yahoo or Dmoz?

[Andy]

Im wondering, if I find a domain in Dmoz top 20 listings for a certain keyword and if I compare it to a domain in the top 100 Yahoo listing for a certian keyword... which can I expect the most traffic from? I know this question sound a bit strange but maby someone can give me a couple of pointers or something

Im just thinking if its worth to register all yahoo and dmoz domains I find that have expried or if its properbly a waste of money.

Thanks,

Andy