When comparing Virtual Box vs CarbonCopy Cloner, the Slant community recommends CarbonCopy Cloner for most people. In the question“What are the best Mac OSX apps for someone that's new to Apple?” CarbonCopy Cloner is ranked 10th while Virtual Box is ranked 15th. The most important reason people chose CarbonCopy Cloner is:
Even if you have tasks in queue, once you connect, it will begin automatically backing up for you.
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Pros
Pro Compatible with Many Operating Systems
It works for Windows, macOS, Linux, BSD, and many others.
Pro Beginner friendly
A virtual machine can be set up in minutes if a ISO file to load is already available.
Pro Works well and fast for Windows host and Linux guest
Pro Free and open source
Pro Many free images available
Though most are linux flavors at https://virtualboxes.org/
Oracle's virtualbox site has others.
Pro Can do snapshots
Pro A lot of customization
VirtualBox has multiple virtualization options. Each one may be tailored to the guest operating system’s needs. This makes it especially good on virtualizing older systems, such as DOS, obscure distros, etc.
Pro Auto-Run
Even if you have tasks in queue, once you connect, it will begin automatically backing up for you.
Pro Flawless Execution
Backing up and restoring your computer are fast and easy. There's no confusion.
Pro Clear Interface
The interface is extremely streamlined. It walks you through the entire process. There are advanced options but they remain hidden until you want them.
Cons
Con Lacks video performance
Virtualbox has a hard cap of 256MB of video memory. This could make newer operating systems run slower.
Con Minimal CPU customization
You can only enable/disable certain features. You cannot cap the speed of the CPU, which is required to run systems such as Windows 95.
Con No Organizing Tasks
Once your tasks are in the queue, you can't reorder them. You also can't organize them into folders.