I have to say that posts will almost always generate much more returns than curation, so posts it is. That said, the perceived quality gained from reading the post is where the curation returns will come from. I curate (upvote/comment) for primarily two reasons: either I was entertained, mentally or visually, or, I feel that I gained, or agree with, knowledge from the poster. The better the post completes one of these two objectives, the better chance I will upvote, and possibly comment, on it. I am sure this is likely a general rule with most readers, so I feel safe saying that this is the direction I would suggest.