Have you looked at our very own Everything too? I couldnt tell you about the others, but Im sure Evrything could be coerced into doing what you want ;)
While I *may* just be bitter, I'm pretty sure that, while Everything can indeed do anything, writing anything from scratch would take less time than coercing Everything in to doing it. (Unless of course the goal was to write an Everything!) (And yours would actually render pages in less than a second!)