Poll: What cross-platform client tech do you prefer?

When you have to write client-side apps that work on a variety of platforms, what tech do you turn to? Answer this question in our quick poll.

A number of technologies promise that you can "write once, run anywhere." The big players right now seem to be Java, Flash/Flex/AIR, HTML + JavaScript, and Silverlight; there are also some alternatives, such as Qt and Tk.

I've dabbled in all of these technologies. My preference at the moment is the Web app route or Silverlight depending upon my needs and conditions, but I recognize that neither option is perfect (I classify both as lesser evils as opposed to good things).

Take this quick poll to let us know your cross-platform client technology preference.