I use spaces. As notacoward mentioned, spaces guarantee that code will look consistent across environment. Spaces are easy to set up and there's no dealing with

I use spaces. As notacoward mentioned, spaces guarantee that code will look consistent across environment. Spaces are easy to set up and there's no dealing with different tab sizing or other similar issue. But, in the end, consistency is what really matters. A fully tabbed project is better than one that mostly uses spaces.