xml package for emacs?

[DaLoverhino]

What do you suggest as an xml package for emacs?  There seems to be a
few.  My qualifications are these:

1. Package is available for gnu emacs on unix and windows.
2. Takes advantage of color.
3. Does indenting.
4. Automatically closes out tag when you do a keystroke to close out
tag.
   So, it will automatically insert "</tag>" for you.
5. Can move between opening and closing tags, and move upto enclosing
tags.

1,4 and 5 are most important to me.

thanks.