Ask HN: What's the ultimate language/environment for developing GUI programs?

I'm planning on developing a new personal project which involves a nontrivial GUI interface. I also want to do this project in the most comfortable way possible-- I'm open to new/exotic languages or stacks which I've never used before. There doesn't seem to be a perfect environment out there as they all have their drawbacks.

Here's what I've considered:

- Pascal and Lazarus

The language isn't the most expressive but it gets the job done. The UI toolkit (Lazarus) is hyped up a lot here but the documentation is horrendous and it seems to have DPI issues and a lack of good controls that I'd need. Creating new controls seems to be a nightmare. This is what I'm leaning towards right now anyway.

- Common Lisp and QTools

I haven't given CL a proper spin yet and it looks super fun to work with. Unfortunately the QT bindings out there aren't declarative or visual so it's going to be a huge pain to do this. Not sure how creating new controls is going to be.

- Red and VID

(https://www.red-lang.org/?m=1) I like this language and the declarative UI framework. However the language is in alpha and the docs are nonexistent. Not sure if this is viable.

- Smalltalk and Morphic

Cool language, but the resulting program is going to look super non-native and weird. A friend described it as looking like "a fake operating system you see in TV shows". Also, the documentation is nonexistent.

- JavaScript and HTML

I'd prefer to not write JavaScript, and the resulting app is going to look really non-native or hodgepodge. Deploying on the web is sort of a plus, but at the end of the day I'd really rather not do this.

Does anybody know of the perfect language and setup for creating a classic GUI app in this day and age?