Which one you have used is the best? I have used DotNetPanel before and looks quite ok, except lack of SQL Server administration tool (I mean something to a level like phpMyAdmin for MySQL) any good suggestion?
Features I would like: 1. Application Pool Management if possible 2. SQL Server Management 3. Speedy ajax file manager 4. Manage ASP.NET/PHP web sites 5. Maybe mail account management too.
If you are happy with your current set up and teh only thing it lacks is SQL Server management, you could have a look at the Microsoft SQL Web Data Administrator.
This is a free download from Microsoft Download Centre and it allows you to manage sql server over the web.
Have you tried ENCOMPASS? It is from the developer of CPanel and have a great list of features. Apart from ENCOMPASS, I have used hosting controller, helm & website panel. I must say that WSP is the best solution of out of three.