I am by far not an expert in Backup & Restore from Windows 7, and personally I never like to "compare" other solutions since I do work for Veeam
I believe the biggest difference is the different options we have for protecting data and restoring data. One of the biggest advantages I believe we have is some possibilities such as "eject the drive" after backup, put it to sleep after backup (as an example) and when restoring the possibility to recover a data volume or specific files or even booting to our recovery media where you can do some troubleshooting first (in case of boot issues) before actually doing a full recovery. I personally believe also that our scheduler is more flexible than the one from Windows Backup & Restore (and you can even use task scheduler if you believe you even need a more flexible schedule...) For example, I am what they call a road warrior and have a default policy to protect my data at 11 PM every day. However, since I jump in and out time zones rather often, my machine is not always connected to the external media or even on at that time. But I do combine that default schedule with different options such as starting the backup when I connect my media again. So if I miss a default schedule, and my latest backup is older than x hours (another schedule option) then it will take the backup the moment I attach or reconnect to my media.
I do understand that you like to keep things as original as possible but on the other hand I strongly advise you to try out both and then decide what feels better and more natural for you. In the end, it is all about your use-cases and what functionality you need, and more importantly, what you want and can restore
Not much, but my 2 cents