I wanted to create a website with the theme of the contest, be it a contest seo, blog, facebook page, twitter, logo design, banner design and more. Where makers and designers gathered contest. And has a cost, as the cost of services for my contest. Approximately cms what is right for me?
You can use any of the CMS but it will require to develop custom theme/template for your purpose. I mostly using Wordpress CMS for my and my clients purpose. it has lots of features and is the best CMS platform from user point of view.