JGZimmerle wrote, "RISC OS wins because of the many tools available wich [sic] are perfectly "integrated" by the WIMP."
Care to expand on that? HTML editors which just give you nicely coloured plain text with buttons for headings and so on (which is all I've seen for RISC OS) are somewhat old hat and were only "the thing" in about 1995 on other platforms. For a lot of the Web stuff I've done, I've needed to know how the CSS I've written will actually turn out, and regardless of how you write the HTML, this demands a browser that can support recent CSS specifications. So I'd say that RISC OS loses because of the browser situation, although since Firefox is apparently getting there on the Iyonix and presumably builds out of the Mozilla development tree, it's conceivable that one day there'll be a port of Mozilla Composer/Nvu/KompoZer - an application which has come along quite far even in the last few months. Then you might even have a decent browser and something which lets you enter text into a page without having to hit a preview button ten times a minute.