Ezine ...Link Juice or Duplicate content

Seeing as how Ezine wont accept dup content anyways it shouldn't be an issue.

I've done it 1,200+ times. It's not a problem. (As long as your articles comply with EZA's editorial guidelines and therefore get accepted, obviously).

No.

It won't be "duplicate content". It'll be "syndicated content".

The quality (link-juice) of the backlink(s) you get, in the resource-box of each article, is not in any way dependent on the content of the article.

Your questions (and many others which may occur to you later) are all answered in this thread (which is the one you need to read).

Whether you'll get traffic from them or not is less predictable. But the backlinks, if there are enough of them, can only help your site, anyway. There's no possible downside.

Bear in mind, though, that all articles in article directories go on new PR-0 pages (regardless of the PR of the home page of the directory), so don't expect dramatic results quickly. And good luck.

This is completely wrong, and doesn't apply here, at all. They won't accept another copy of an article they already have, but that has nothing to do with this conversation.

I have over 1,200 articles at EZA all of which had originally been published and indexed on my own sites before submission there. So do hundreds of other professional article marketers. It may help you to differentiate between "duplicate content" and "syndicated content"; not to mention between "original content" and "unique content". Absolutely no hostility intended, but you're clearly somewhat confused about the whole thing at the moment, and if you'll excuse the observation, that's really not a good starting point for advising other people about it.

Ezine is the best for submitting article. Here only unique article is.

You can contact with the administrator of EZ to ask these question. they are so enlightened and will tell you how to do it. I like EZ not only it is the best article directory, but also they answer your question as soon as possible.