I know this may be a debatable topic, but what is the most popular OS among developers (mainly web developers). I'm thinking of dual booting one of my machines, and do web design quite a bit and primarily am doing this to test websites, but I might want to do some design in Linux.
The machine it's being installed on is a P4 2.8 GHz with 1.5GB of RAM, and an 80GB hard drive, so it should be powerful enoug hto run many distros. I may also want to do some applications programming on the Linux distro too, so extra programming tools are a plus.
Suggestions? Is Ubuntu sufficient, or should I look into other distros like Fedora, etc?