Honestly? The environment... I have different styles in different languages and IDEs, for example I started Java with NetBeans that defaults brackets to same line, so when I use Java I default to same line brackets, C# on the other hand, Visual Studio defaults to brackets on their own line, and so do I.
You could see me write same code on different languages/environment and it would be styled differently. Yes I know, I should be burning in hell,I am THAT kind of guy xD