Best way to send XML to a servlet?

[Guy With Question]

Hi,

I am using HTTP client 3.0.

I have a very large XML string I want to send to a servlet. I have the liberty 
to choose whatever transport I want, since I will be writing both the client 
and the servlet. The servlet ultimately needs the XML as an input stream to 
perform XSLT transformations.

What would be the best way to send this large XML data, SOAP document, NV 
pairs, or is there some other easier way?

Thanks very much!