Forum:Page rating system. Is one possible?

Hi I Co-Founded and run the Awesomenuats Wiki and have been working on a system that allows users to submit guides on how to play each character in the game. One of the things that would make this system more usable to visitors is to allow the pages to be rated. This way the best guides could rise to the top of stack and visitors would know which ones are more reliable.

My question is: Is this possible to do on Wikia? The only way I have thought to do this is by using my SQL server that I use on other sites, but that seems out of the spirit of a wiki (having soul ownership of a major part of the wiki). Anyone has any ideas on how this could be done? I still lack knowledge on alot of what wikia can and can't do.