I cant decide which one I ālike betterā, but this new one is definitely even more fitting for an anime OP. The thing to remember is that because anime openings are so short, they have to ābuild the hypeā much more strongly, and more quickly.
First, compared to the original, this version starts more brightly, using a much more synth-y guitar. And then come the trumpets. I just love the trumpets in this version, theyre so exciting. Dont know why (might have something to do with having played the trumpet myself) but I always feel so invigorated by trumpets in openings like this (see Scarlet, Hikaru Nara, etc.).
Second, I cannot say for sure since we havent seen the opening itself yet, but its very possible that the emptier verse (taking out the distinct, harsh ele. guitar and the drums) is going to fit better with the visuals. I really like that defined base line, and I think that removing the drums and having only cymbals for a verse has a great effect for when the drums are brought back in to build up to the chorus.
Speaking of drums, possibly my favorite part of this anime version how they sound less like a drum synth and more like real drums. Not only that, but the drums took on many more rhythms in this version to replace the rhythms originally played by deeper synths (Im guessing to make the song feel ālighterā). Im a bit of a drum nut though, so I may be the only one who cares about that.
By the way, as I was taking my time thinking about this, I realized that the same style of anime version OPs is consistent across all Key adaptations. All the anime OPs seem to be more flashy and more flat, while VN OPs seem to be smoother and bolder. Interesting, to say the least!