I personally use a Linux Distro (OpenSUSE, and occasionally Ubuntu) for any Web Development, but I'd like to hear more about the choices of professionals in the field, those who earn a living with their work.
I use KDE mainly because it feels a lot faster than GNOME and Unity and because it moves out of the way when I don't need it. And the smart-as-shit rendering engine for Oxygen makes GNOME apps look native to KDE so it's like I'm at home. I use my laptop for gaming and work.
