I want to establish a rating website such as current extistent sites for rating hotels and etc. But i want to use it in my own language (non-English) and i want to have a website for rating proffessors. Please let me know for any possible options.
You can go for Wordpress. The Gstar rating plugin is good and there are few multi lingual plugins as well.
I would also vote for wordpress which is simple, you can also consider joomla which is little more complex.
Here is the plugin URL http://wordpress.org/extend/plugins/gd-star-rating/. My mistake it is actually GD Star and not G Star