Till now I've tried and tested : Django-Grappelli and Django-Admin-Bootstrapped Module on the Arches' Django interface. The primary visual stats are quite excellent for both the modules, however, they both lack the facility of customization. Therefore, I started creating core extended templates and customized css files for the Arches Django Admin.
: Code Repository
Customizing the django admin interface is a fun task. I extracted the useful code from the core django files and stored them in admin/index.html and Arches.css
I changed the tabular layout of models and also created a drop-down version of the same. Images attached for reference below.