Comment by gampleman

I think they serve different use cases. I love Vega-lite for exploratory analysis and for quick prototyping. You can get fantastically complex visualisations very quickly with it. But for building "production" visualisations, I think the low level approach is better: you'll get much smaller bundle sizes, you have much more control over the final look and that control tends to be expressed "naturally" rather than in convoluted configuration.