1. It makes no sense to restore the backup from both, since restoring the second would replace the first. What you want to do, is backup with both incase one backup fails to restore correctly, then you have an alternative:
2. To restore the iCloud backup:
Settings > General > Reset > Erase All Content and Settings. Then reactivate the phone and you'll get the option to restore the backup from either iCloud or iTunes.
Thanks, this is what I thought!
I understand that iCloud doesn't back up apps though? Is this correct or does it back up the same content as iTunes?
The other issue I was having with restoring from iCloud (which I initially tried to do before restoring from iTunes) was that the restore would commence and a few minutes from the end it would disconnect from the Wifi and fail. I did this a few times and it kept failing. I don't think this is my wifi as it works perfectly fine for my Mac and iPad during this time...