Hey,
The single biggest advantage is root access - that too unrestricted!!! You get dedicated IP's along with the VPs itself. You need not order seperately. A regular reseller plan does not allow you to create another reseller plan. In a
VPS Hosting, you may create your own reseller accounts from WHM.
Virtuozzo is a very handy tool. It allows you to reboot, re-install, backup & restore, repair & monitor resource usage all by yourself.
Each server node has not more than 15
VPS Hosting' created. So there is more resources to be used & a faster connection as well. More than all this, for a bit more, you get to use something which is as good as a server in itself.