By now you’ve searched a lot of ads and seen dozens of ads using the same copy or landing pages. With so many ads to choose from, you may ask which are the best performing ads.
Unless you're the campaign owner, there's no way to the exact spend or conversions of each campaign, however you can try estimating it ads running for the longest period of time.
The rationale is very simple, no advertiser will continue spending money on unprofitable ads for an extended period of time.
Another option is based on ads with higher engagement, if for some reason they're getting a lot of comments and likes, they could be better ads as more people are replying to them.
To find out which ads are most probably profitable sort your search by first created or most liked/commented.