html or xtml which is better?

I am building a website
wonder which is better html or xtml
What are the pros and cons of each


depends on what type of website you are going to build

The web standards project has a good overview of the differences:

However, this covers HTML 4.01 and XHTML 1.0

A more up to date view comparing HTML 5.0 and XHTML 2.0:

An SEO related one?

edit: jacob can be a real meanie at times. ;)

I personally prefer xhtml because I think it’s better with SEO.