Why don´t you finish the actual proyect? Is bad idea in the middle of a proyect to switch entire code, levels, etc... if you are a "one team army" time is all, energy and time are at same time gold and enemies for one alone designer.
But your question:
Unity: best performance, best "addons", more platforms deploys, fast "bug" fixes.... more editor functionalities but worse editor concept (slow edit for me). DirectX.
Godot: Best editor for one alone designer but prepared to team work and git, all integrated: code, animation and level design. POO design. Code editor: Autocomplete, syntax highlight, functions, variables and constants suggestions for the actual class, autocomplete sugestion for members of singletons scripts... but you can´t close functions like in notepad++ to see code "trunked". Open Source. Portable. 32 and 64 bit editor, executable with no administrator privileges, no dependencies, no instalation, fast deploy and code but you don´t have prefabs, you need to code save system and files read/writing (have classes for this), you need to code your "platformer" mecanics (not dificcult and you are a coder!) but you have psysics to do that. Best 2D editor, easy to placement assets, easy to animate (there is not mesh animation for the moment), but lower performance at same number of render elements or number of objects that Unity. GDScript is fastest languaje to write that C#, but worst performance (not much more, but for intense computation there are bottleneck´s) OpenGL ----> executable in all kind of system, integrated card´s included, but performance diferences (some operating system or hardware stutters a bit, other no, etc.....)
In the actual state Unity wins in a lot of things, and I´m a Godot-Ultra. 3.0 promisses an audio daw with buses, best performance, scripting to integrate native code and libraries, C#, Visual Scripting, and a lot of features...
So: Godot is worst in all at the same time that is best in all :D :D :D . I don´t change Godot for Unity. My pendrive got 7zip, notepad++,GIMP, Inkscape, my loved Reaper and Godot... with this pendrive I can do a game, a song, a drawing... in every system around the world, don´t need more, only creativity and a loooooot of work.
I don´t like closed-invasive systems like Unity but If you are agree with this kind of invasion, no- portability, one computer license, one million of license comprobation, one million of minutes of charge things that are not part of your proyect and excesive dependencies of a opaque decisions in a closed opaque code..... there is Game Maker too... very very worst editor that Godot but you have a lot of performance with yoyo-compiler and all expensive export options (consoles included) and if your game is frame to frame pixel animation probably don´t need a lot of skeleton animations, 3d objects,etc...