Legend 2015/New Year Fox Festival(Saitama Super Arena) - To me this is as close to a perfect show that they've ever done and I'm not sure that it will ever be topped. With any set list they do in the future there will always be a lot of songs that they can't fit in, while this show was basically their entire catalog up to that point. This is the show that I think about when I think "This is BABYMETAL". Also I think this show has their best opening ever and probably the best 3 opening songs that they've ever done.
Live at Budokan Black Night - Red Night is going to be left out just because it's so similar to Black Night but not as good with 2 less songs and I don't like the set list order as much.
Legend 1997 - Headbanger Remix, Akatsuki Unfinished, BABYMETAL Death with Su Metal on cross. This would probably be rated higher if it had Kami band for the whole show.
Red Mass 2015 - The most unique BABYMETAL crowd because of the energy of all females in a smaller venue. Argument could be made for Metrock 2015 being in this spot but it was a shorter set.
I left out Tokyo Dome because I'm still not sure how to feel about it and I want to see the full shows on Blu Ray. I was there live and based on that I would rank them in the top 2 spots, but the WOWOW broadcasts were a bit disappointing and I'm not sure why. Maybe because the scale of those shows didn't come through on video compared to what it was like being there in person? I'm hoping the full shows on Blu Ray will make me feel better about about the recording.