MOND predicts dwarf galaxy feature prior to observations

[little_monkey]

The problem with Modfied Newtonian Dynamics, the idea that there is a break in the intensity of gravity at very low accelerations, is that if it works, we still don't know why it works. It kind of resolves the Dark Matter issue, though.

Yes, indeed a strong point that MOND has over Dark Energy models is that it can make prediction, while DE can't as you have to figure what is the ratio DE/(ordinary) M for each galaxy, but MOND has one universal equation applied to every single galaxy. But as you've stated, the drawback is that they have to postulate a threshold acceleration. And to be a viable theory, it would need to explain this threshold. I don't think GR can help in that regard. But who knows!