Well, an objective best one is hard to pinpoint.
If you're anything like me and find the Bride design to be lacking in flashy red glory, you can first exclude those.
So then looking at what scales we have, there's obviously the swimsuit one from Alter. Looks pretty good, Alter quality, finally coming out after a bajillion delays too. Gotta see whether you like swimsuit figures enough, though. Missing an outfit on Nero of all characters is arguably a huge deal.
Then there are the two standard outfit ones from Goodsmile and Koto. Seem fine, might want to do some research.
Finally there's your pic related one from Alphamax and the Flare one, which both have the frilly red summer dress. Others are more qualified than I am as to how good these manufacturers are, but do note that the Flare one seems to have the eye shape that most closely resembles Arco Wada's style from the days of Extra, before her art evolved in Extella. The infamous "bug-eyes", as they're sometimes called. Some love them, some hate them. Depending where you stand on that, it could either be a good or bad point in favor of that particular scale.