Backdrop CMS is an alternative to Drupal 8. If you're upgrading from Drupal 7, what would be the reason to decide for Drupal 8 instead of Backdrop?
When should I use Drupal 8 rather than Backdrop CMS?
1 answer
Reasons to decide for Drupal 8 instead of Backdrop CMS are (*):
- D8 is better Internationalization.
- D8 has a Symfony-like architecture.
- D8 has a more robust out of box experience.
- D8 has a much larger support community.
(*): These bullets are quotes from a comment from quicksketch (from around 'end 1Q2015'), added to his answer to the question "When should I use Backdrop CMS rather than Drupal 8?". It ends with "Maybe there should be a whole separate question for that answer" ... Hence "this" answer.
PS: There are more reasons then those above ... CMI, TWIG, etc ... Try Drupal (8) to experience them yourself.