Short Answer: Most platforms are pretty even when it comes to SEO.
The truth is that it will depend more on your content, and how well you promote your site (and get links).
Long Answer: Each platform has its strengths when it comes to SEO.
- WordPress (our favorite) is extremely customizable, and can use plugins that people write to take advantage of new ranking factors, or announcements from Google.
WordPress also has the advantage a robust integrated Blogging platform, which can help in the content marketing side of things.