It's easier than you think. Simply put, each business is listed by the number of reviews and medals received. The business who has the most reviews and most Gold Medal rankings will be listed first in each category.
Each medal holds a different weight, Gold the highest, Silver second highest and Bronze the lowest. Even though Bronze medals are the lowest of the three rankings, when a business receives a positive review they are obviously a good company. It's like the Olympics... Even if you go to the Olympics and win a Bronze medal, you are still one of the best athletes in the world.
If you want your favorite business to get noticed all you have to do is write a positive review with the highest ranking and spread the word by sharing your review with your network of friends, social networks and family members. You are only able to write one review for each business. Should your experience change, you can go back and edit your review.
That's it. Told you it was simple!