What is more important for a good health a lot of physical exercises or a balanced vegan diet?
Now I feel like I have some kind of dejaview. 
I’m starting to doubt that vegan diet is healthy…
I thought I answered to this question? 
Every real fitness expert will tell you that to stay fit&healthy you have to exercise a lot and follow a healthy (veg*an) diet. So the discussion you proposed would be like discussing the superiority of Xmas over Easter or vice versa.