hmm for me i prefer C language in making my program, coz it's more easy to use it and the codes we used in programming using the C language is more relative to our natural language..it's also the programming language we used in our school.
I don't much like XHTML, to be honest. XHTML 1.0 was a bad standard -- all cost and no benefit. I am looking forward to comparing XHTML 2.0 to HTML 5.0, though, if the respective standards bodies can get moving. Both of those look exciting.