I'm not sure exactly what the OP is going for, here, but I will say that live versions of "Pull Me Under" never seem to capture the vibe of the studio version, IMO.
I have further thoughts on the question in the OP that I'll try to share in the next few days, but I wanted to say now that I really agree with this sentiment.
There's something about the chorus specifically, to me. That chorus grabbed me the very first time I heard the song because it sounded... I don't know quite how to capture it. Almost choral, with this high, clean line repeated a three times. There's something magical about that sound that drew me in right away. And that vibe just can't be replicated live with only one singer. Even if it could... the way James sings it live is fine, but it just doesn't capture that magic vibe. Pre-accident, he puts too much grit on it, and post, he can't sustain those high clean notes in the same easy way he does on IAW. Live it has a different vibe, which is decent, but it's not the magic vibe of the studio version.
I think the chorus of The Ones Who Help to Set the Sun could have had a vibe somewhat like this if it was sung by a chorus. But not quite the same.
Honestly, all of
Images and Words would almost be a good answer to me for this thread. There's something about the way that album was written, performed and produced that makes it feel almost ethereal while still having tons of energy. It feels like being in another world, a beautiful one that's wintery yet full of light. Surrounded is the paradigm of this sound, but every song has it. As much flack as DT album art sometimes gets, I think the artwork is close to the unique vibe I feel on this album, but it's still difficult to describe.
Awake has its own distinct vibe for me, too, but it's not as distinctive as IAW. It's in another world, too, but one that's a little closer to ordinary life. It's an icier world with a sense of anxiety where the world of IAW has a sense of deliverance.
The other DT albums don't have a unique vibe like this for me, although that's not to say they aren't different from each other and don't have unique vibes at times.