Page generator

What tool or plugin are you guys using to blast out 100s or 1000s of web pages? Coming up with the content isn't necessary the time consuming part. Its adding in the SEO titles and meta descriptions for each page.

Right now I'm using the free Lpagery plugin. But I'm looking for something more efficient.

WP All Import + a CSV works well for bulk page generation, and you can auto-fill SEO titles/meta with variables instead of doing them one by one.