This app was mentioned in 1 comment, with an average of 2.00 upvotes
MY favorite is ellipse. I programmed it in c# with Unity3D.
My most popular is Spider Swarm which I programmed in Java. It's fun for about two minutes but I have plans to redo it and make more of a game from it.
Right now I am working on a web app for a web hosting company. It's a site where kids can upload pictures of different sayings. I'm using PHP mostly for that. I gave up on the games and decided that web dev was more in demand. I'm not getting paid for the project but I will get a cut of any revenue that the site earns. I'm hoping this will lead to real work with them or that I can use it to get a development job somewhere else when I'm done. I have spent the last few months just learning web stuff so it's fun to see it all coming together. All the content of the site comes from the database so it's pretty neat to see the fruit of my learning.
I don't have a favourite language. I guess I just see them all as tools. I love creating though.