When you choose the kind of website you want, it is important to choose a platform from which Google and other search engine can read content. If you want visitors to come from search engines, never use Flash.
Flash can contain appealing animations, but search engines cannot read the text contained in the Flash file. Thus you should never Flash if you want to get a better position in search engines. The content on your website is very important for targeted search engine optimization. Search engines will find all words on your website.