Too Long; Didn't Read
The question of “what makes the best smart contract platform” really depends on who’s asking it. There are a few indicators that can help in shortlisting the likeliest candidates. The number of applications on the product is a powerful indicator of a platform with longevity. However, the number of daily active users transacting on dApps is also a reliable indicator of acceptance and adoption and should be considered in any argument about what makes a platform truly great. For example, 18 of the top 20 projects on Github with the most activity are based on the platform.