Rails Alternative to The Django admin panel / CRUD View Generator?
Answer in several parts:
for something similar to Django admin, it all depends on what you plan to do with it. If you want to build your site around it, scaffolding is good. However, even if you chose Django, don't build your site around admin. It is not meant for this (it is possible, but after you'll have very little flexibility), it is just made for being an admin interface.
This being said, if you need to work fast, and have no knowledge in Python nor in Ruby, I would go for Python - Django. Rails can be awfully productive, but the learning curve is much steeper than Django's. And Ruby's syntax is very fancy, but Python's is neater in my opinion (I know some will disagree on this!)