When I was burning Flying Blue miles I got to use the AF F lounge on my one and only F redemption (status doesn't get you into their F lounge). They had a menu of waters possibly more extensive than a wine list in some restaurants. Before that I never thought people cared enough to choose a particular water - it's always been just still or sparkling to me.
I did think Voss was the nicest I tried there, but whether it really was better or the packaging had convinced me (comes in a nice bottle) is another matter.
Couldn't see any British waters when I used that lounge perhaps they consider British waters not premium enough.