But that was the one for me.

[shootingstar]

(Nora doing a podcast interviewed by Marcelo in Brazil)
Marcelo smiled, gently, as he pressed on. For me it seemed so primal. The song, I mean. Like you were letting everything out. And then I discovered you wrote it on the very night you fired your last manager. Before Joanna. After you found out he'd been ripping you off . . .
'Yeah. That wasn't good,' she improvised. 'It was such a betrayal.'
'I was a big Labyrinths fan before "Howl". But that was the one for me. That and "Lighthouse Girl". "Howl" was where I was like, Nora Seel is a genius. The lyrics are pretty abstract, but the way you let out that rage . .- .
(The Midnigt Library by Matt Haig, episode The Podcast of Revelations)

What does "that was the one for me" express in this context? In what other contexts is this phrasing used? Can you tell me some examples?

 

[5jj]

'I was a big Labyrinths fan before "Howl". But that was the one for me.

"Howl" was the one (the song) that stood out above all others for me.

In what other contexts is this phrasing used? Can you tell me some examples?

I tried out several English language forums and then one day I found UsingEnglish.com. I realised that that was the one for me, and gave up on the others.