- You should use recommendation score.
- You should use attribution score.
- You should use quality score.
- You should use optimization score.
The Correct Answer is: You should use optimization score.
The Google Ads Optimization Score is a pivotal tool that estimates the performance potential of your account, on a scale from 0-100%. A 100% score indicates maximum potential. Coupled with this score are recommendations to enhance each campaign, each showing how much it could impact your score. It’s important to note that the Optimization Score is available at different levels – Campaign, Account, and Manager Account – and for various active campaigns. This score is dynamic and can change due to several factors such as account statistics, settings, and general trends in the ads ecosystem.
Read more here: https://support.google.com/google-ads/answer/9061547