I apologize if this thread is already out there and I realize this can be a touchy subject for some but which do you prefer and why?

For example: Is it better to use a Vivarium but have to keep multiples in the one cage or use a rack and house each one seperate?

I don't want this to turn into a Good v. Evil battle but I would like to know the pros and cons of both specifically regarding the housing of Thamnophis, I am not interested in reading comments on any other group.

Thanks everyone and keep it clean!

-Thomas