The star count that should matter for me would be as follows:
1. The happiness and productivity level I have when perusing one over the other.
2. The actual application being shipped and the level of happiness and satisfaction that I get from the customers.
3. The number of features I can quickly ship on top of the application.
4. The ease of maintainability / support for the application. Easier to maintain = more stars in my world.
The feature set that both frameworks offer are pretty much on par, although I would say (IMHO) that Vue is far easier to understand and seems to be less complex, over all the other frameworks I have used (React, Angular, Ember, Knockout).