WordPress have some of the best themes in it which would probably beat other premium themes. A blog’s theme should speak for itself with the reader who visit the site. It should improve the readability and make the user to visit the site again and again for simple solutions with great content. In that way most of them go for some premium themes but wordpress have free themes that are far better compared to other premium versions.
Swift is the most comfortable, versatile, fastest loading theme also with SEO friendliness which you will surely like on the first look. Swift has more number of fans around the world with most of them using the free version and some have gone for premium theme in swift. Swift carries clean and neat design and a lite structure which you can manage and control from a single node.
Wp perfect is another best free theme onwith very lite nature. This will increase the readers count there by providing them great content customization with which you can easily change the font and texture for any post. It have custom menus and custom backgrounds also fast loading of your content.
inLine is a free theme from wordpress which is an combination of magazine and a blog like look. You cant say this to be a marketing sort of type but it will carry those features also. The theme actually comprises a very simple refreshing look which will bring some regular reader for your weblog. It will be a clean slate like appearance with which you can more and more collective information in a brief way on your home page.
Simplo theme gives a professional look to your weblog and improves the content readability for your visitors. This is a customized theme from site5 who have the official rights for simplo theme and used in wordpress. You can change the background colour and the font shapes for your content which is very simple on single click. You can all together view a tech blog sort of appearance using this theme with the content your develop.
Hybrid theme is mostly used because of its SEO friendliness. This themes gives you 15 custom page templates which makes your work more optimized. It also posses multiple widget-ready areas which allows you to create a website of your kind in any basics that will surely get some traffic. If in case of weblog it attracts many users with its simple and clean appearance with more importance for readability.