This is the most popular, and the one most entrepreneurs and people who are serious about websites use. It gives you full control. You control everything that goes on. So if you're looking for maximum control over things, and great performance from your server, this is where you'd like to be. You don't share resources like CPU time and memory with anyone else, and there's no one else's accounts on your hosting (unless you let them, of course). While the freedom is great, it comes with the issues of freedom; namely, your stuff is your responsibility, and no one else's.