@oleymedia: H1 tag per article tag is good for SEO in HTML5 and we have carefully designed H1 tags with special attention on header tag and headings. It is not good if you are using HTML4. But, Catch Responsive theme is build in HTML5, CSS3 and Responsive design. So, H1 is better for SEO then H2.
You can also check this Video http://www.youtube.com/watch?v=GIn5qJKU8VM by Google software engineer Matt Cutts, who clearly states that you can use multiple H1 but don’t over do it. Also use h1 specific to heading and header tags.
You can also check this article URL http://html5doctor.com/html5-seo-search-engine-optimisation/
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