pyvim vs neovim-gtk
When comparing pyvim vs neovim-gtk, the Slant community recommends pyvim for most people. In the question“What are the best terminal text editors?” pyvim is ranked 21st while neovim-gtk is ranked 23rd. The most important reason people chose pyvim is:
Pyvim is written in Python. It's a great language that allows for fast development of features and quick bugfixing. It also relies on existing Python plugins to add even more functionality.
Specs
Ranked in these QuestionsQuestion Ranking
Pros

Pro Fast development of new features
Pyvim is written in Python. It's a great language that allows for fast development of features and quick bugfixing.
It also relies on existing Python plugins to add even more functionality.

Pro Vim-like editor
Pyvim has some of Vim's features and shortcuts, as well as some custom improvements that are already built-in.
Pro Full GTK3 integration
The UI is fully GTK3 compatable, so it themes to match your desktop and the functions are all in expected locations.
Pro Light UI stays out of the way but does provide all expected widgets
The overall UI is very trim and doesn't take up screen space for no reason, but all the expected bits like tabs and popups and even the command line have native widgets.
Pro Support for ligatures
Fonts with ligatures can be used to render code.
Cons
Con CLI only
Pyvim runs through the terminal only.
