dynamic virtual hosts

["Rose, John B" <jbrose@xxxxxxx>]

We have been experimenting with "mod vhost alias" and "mod rewrite" methods of dynamic virtual hosting

They both work fine for …

abc.persons.domain.com

xyz.persons.domain.com

 Etc.

We would also like to be able to do dynamic virtual hosting for a mixture of sub domains and domains …

111.subdomain1.domain.com

subdomain1.domain.com

222.subdomain2.domain.com

subdomain2.domain.com

subdomain3.domain2.com

subdomain4.domain2.com

1. Does any have preferences, pros, cons, what is best for scaling to hundreds of virtual hosts over years, etc between the alternative methods of dynamic virtual hosts configurations?
2. Has anyone used a method they think is best for dynamic virtual hosting for a mixture of domains and subdomains

Thanks