TABS!

Personally i prefered tabs for a long time. Anyway, above all, it's important to stay consistent, and i found that the majority of guidelines and projects out there prefer using spaces over tabs. For that reason i tend to use spaces now.

Tabs are tabs and spaces are spaces thats why ;-)

I use tabs, for the simple reason that whoever is reading the code can choose to see it indented 2 or 4 or 8 or whatever he/she is comfortable with. The most comfortable indentation width is determined by the user's personal choice, their screen size and their editor. When I read code which uses spaces for indentation, I feel that the writer has not respected my preference. I don't want to do the same.

Both actually, but not intentionally ;) I tend to use tabs in CSS files and spaces in jQuery. Don't know why, it's sort of automatic.

And now Sublime uses 2 spaces for indentation in CSS and I keep it that way...

Everything will be minified anyway, so why bother having a war over white space? ;)

python.org/dev/peps/pep-0008 :)

I think most of the developers use the combination of tabs and spaces as suggested by @KapuzenSohn. I use tabs for indentation and spaces for readability.

I use tabs for code placement and spaces like this: if (true) {