You want as many positive ratings as possible. Get your friends to give you positive ratings. Email your list of YouTube subscribers and ask them to give it a like rating. I've found ratings are just as important as video views. If you have 50,000 video views and two hundred negative ratings, your video will not rank in the top. If you have 50,000 video views and two hundred like ratings you're going to be sitting at the top of YouTube's search results.