My concern is that one format “wins” over the other, not so much which is better. Like, for instance, if I go with an HDR-only TV and Dolby Vision “wins”, HDR will lose support and I’d be screwed on future media/content.
The benefit of HDR seems to be, much like Freesync, that it’s software based. Whereas Dolby Vision, like GSync, is hardware based. Meaning that as long as TVs meet the spec-requirements, they can be updated to newer HDR versions via firmware/software updates, Dolby Vision requires a physical chip.