Post article in every article directory but your article content should be unique so its not in Issues...
Yes it's true that Article directories links are not at all so powerful as earlier, but still provide us with backlinks. Also sites like ezinearticles have become very much strict and have stopped approving low quality articles also increased the approval period for articles.
I still do article submission, yeh some of articles ranked have dropped, but some of articles rank moved up. I would suggest, write unique article (Non Duplication) content and submit hem to article directories. i will help you to get one way back links hope i answered your questions