Here at Ultimate Web Hosting, we provide two main types of shared hosting. There is Linux Hosting and Windows Hosting. Ultimate Web Hosting specialises in offering cheap web hosting to all of our customers, without any compromise in quality, even with the small price tag.
The most standard hosting is Linux and so we would recommend that for the majority of our customers (especially for WordPress sites etc). However, if you know that you will require a Windows package due to the requirements of the website, then you should obviously choose that.