This brings us back to name recognition.
If you deliver useful, relevant and timely content with each email and newsletter you send, your subscribers will start to watch for your name in their inbox.

If you deliver low quality content, then they will start to ignore you when they see your name.

Ultimately, the best thing you can do for your subject line is to always deliver outstanding content, and always include your site, newsletter or editor’s name in the subject line itself.

Which brings us to one final point.

Do the same with your "From:" line. Use it for name recognition.

As an example, here is what a subscriber will see when receiving one of my own newsletters:

From: Nick Usborne
Subject: Excess Voice #105 - Newsletter Co-Registration

I do it that way because some people are more familiar with my own name than that of my newsletter. And vice versa. So I make sure that both names appear in their inbox.

In conclusion: go for name recognition, avoid spam filters, always test, and deliver great content.