Upgrade Finder - Legendaries


Hi. I made a legendary, thanks to the upgrade finder - legendaries.
I chose one of the top legendaries among the suggestions.
Then I expected most of the suggestions turned into downgrade, because I already made one and only one legendary can be equiped. But they didn’t.
Now I’m looking for a second legendary to make, used situationally. But I feel confused ‘Was this legendary better than what I already made?’.
Any advice for this would be appreciated!

The legendary ranking works a little differently than the other rankings: