445 Ratings, yet some games only have one. This means that there is a game out there that's escalating quickly. The wait continues.
Well yeah, the first price and the other prices sure are really sweet, who wouldn't want an Xbox One or a nice copy of Fusion? But the prices aside, what counts in these game jams is the spirit, the spirit of rushing and working seriously and putting your heart into making a game, having an actual deadline and chasing time. It gives you experience and you get to meet some new people and make friends in the game dev/indie game community, you also get the satisfactory feeling that you actually completed a game, a real product in a given deadline and that it is displayed in front of a lot of people to watch and play.
Participate in every Jam you can (this message is for everyone) because it gives you experience, knowledge and it lets you learn some design elements from the winners' games. You will get better and better until one day you will be the one that's leading as the first place.
15 votes means your game is doing great since there are still some with only one vote :)