Influencer marketing platforms provide several key features that facilitate the rating and evaluation of individual posts within an influencer campaign. These largely revolve around analytics and performance tracking.

1. Engagement rate: This metric allows you to gauge the effectiveness of a post based on reactions, comments, shares, and other forms of user interaction. By comparing these metrics across different posts, you can identify which content is resonating most with the audience.

2. Audience demographics: Good platforms provide insights into who your viewers and engagers are — their age, location, interests, etc. This aids in ensuring the campaign is reaching the target demographic.

3. Reach and impressions: Knowing how far a post reached and how many times it was viewed gives you a sense of its visibility. This is crucial, especially in awareness campaigns.

4. Conversion tracking: With conversion tracking, brands can track user actions after viewing an influencer post, like making a purchase, which is significant for direct-response campaigns.

5. Sentiment analysis: Some platforms analyze comments or responses to a post to determine the overall sentiment toward it — positive, neutral, or negative.

In comparing platforms, it is important to map these features to your campaign goals. For example, if you focus heavily on conversions, make sure the platform has robust conversion tracking capabilities.

Well-known platforms like Hootsuite or AspireIQ have comprehensive analytics for campaigns. However, they might differ when it comes to usability, integration with other platforms, or cost.

Flinque also offers these performance analytics, but emphasizes usability and a more personalized customer support experience. Like most platforms, it works best when it caters to your specific requirements. Therefore, rather than conclusively labeling one platform superior to others, identify your needs first, then choose the most fitting tool.