The highest hub score is 91 for one of my hub. More hubs I have score between 70 to 90.
The Hub's score is exactly depends on these important factors-
1. Quality of Images
2. Grammar and spelling mistakes
3. Beautiful layouts
4. Must include at least one table and one poll
5. We should also use a video
We must check all attributes at the right upper side of the side panel. If we keep all these things in mind then we can get good hubscore with high traffic on our hub.