SVG works so fantastically well with React -- it's just part of the DOM, after all. Unless there are performance concerns, that reason alone would make me choose it over Canvas every time.
Shameless plug, one of my first experiments with SVG+react (+cljs): https://polymeris.github.io/carlos/ Done in one day, without knowing the tech.
Shameless plug, one of my first experiments with SVG+react (+cljs): https://polymeris.github.io/carlos/ Done in one day, without knowing the tech.