Can anybody help me with a monitor choice? It's a bit confusing.

are you gaming? Or simply using the monitor for web browsing and work stuff?

For gaming, the higher refresh rate is better, For everything else, any of them will be fine.

I have a 4070 Super, and two 4k monitors that however only reach 60hz, though you can find 4k monitors that have higher refresh rates. With a 4070, and depending on the game you are running, you might not even reach the 165 or 240hz of those monitors anyway.

Personally, I would go for resolution over refresh rate. 60Hz seems to be enough for me.
I used to have a 1080p monitor and thought that would be enough, but since switching to 4k, I could never go back.
If your GPU can’t properly run games at native resolution, most modern games support either DLSS or FSR upscaling.

You have a really good graphics card, and going as low as 1080p would be a huge waste.

There’s a price premium for 240hz which I don’t think is worth it.

Don’t skimp on the monitor. It’s the thing that’s going to last years and that you look at all the time. I’d probably get neither of those and budget for something even better. Consider the panel type, whether you want curved, ultra-wide, etc.

If I had to choose either, it would be the 1440 one every time.

I’d spend the money on UHD but slower refresh. I do a lot of movie streaming. Movies in UHD are stunning!

Many thanks for all your answers. You’ve given me something to think about.

It really is about your priorities. Are you watching movies, gaming, music production, NASA Control Center? If you are gaming then you want refresh rate. Else go for resolution.
Form and fit may play into this choice too. Do you want a curved screen? I recently made changes and all those came into play. (L-Shaped desk, 2 monitors on right, 2 monitors on left, larger curved one in the middle)