I would move to Spacemacs if it had the possibility for using a tabbed interface similar to GVim's. Ideally something already built in, mature, and one which wouldn't need any hand holding during operation.
Vim's tabbed interface is quite good, it's basically Vim + a Vim-specific stacking window manager.
Vim's tabbed interface is quite good, it's basically Vim + a Vim-specific stacking window manager.