"Better" in what way?
Nero Express doesn't bore users who only want to burn...who do not want the entire Nero suite installed (includes burning, backup, etc.) installed on the system.
CD/DVD drives normally only include Nero Express with the drives.
I'm still using Nero 6.6
so I have no clue about Nero 7 Essentials, but I'm sure there is plenty of info at the Nero website on it.