Delete Address Book Duplicates with less info?

I was wondering how you would go about deleting duplicate contacts in Address Book 4.0.3? I want to keep the contacts I have which contain at least the "Company" field filled in (contacts with more info) but then delete the ones with less. If a bunch of vCards have the same name but different email addresses will will they merge into only one vCard (by default I think another program put multiple emails with the same name and when I merged vCards there was only one email address for that name)? Should I merge the ones I don't want?
What do you guys think is the best solution? Should I merge the cards and make sure the names of the contacts are all different (except the ones I'm merging)? Use some other program? Please respond if you have an idea because I don't. Thanks.