Xml Document Creation

[kahjah]

I want to create a xml file with the following format,\[code\]<myFiles> <name>myname</name> <place>myplace</place> <mydata> <today>1-1-2011</today> <time>1 PM</time> <driving> <car>audi</car> <bus>volvo</bus> </driving> </mydata></myFiles>\[/code\]I have 2 options[*]Using a model class to build the xml [*]Using a dictionary to store details, then build json from that dictionaryWhich is the best option, or any other method available? It is a big document and may have data of more than 100 users.Thanks in advance