I have donated to all the causes since they are all great causes, but the one that I have been donating the most is Medical Care. A lot of people have resources near by their home for health issues, but some in the world don't have what we have. Donating these coins help many people with health issues in different parts in the world. We can see a change in growth for many people. Also, thank you Club Penguin for making Coins for Change happen. It really helps a lot to this great planet. A little amount goes a long way.
P.S. I love the holiday party this year. Great job CP!