
(hint, hint - this topic is merely a cover-up to persuade viabuona to comment on his top 3 choirs

I'll start:
1. Roden Boys Choir
The best intense sound, sensitive, clear, amazing focus and concentration while performing, excellent lower voices. Love the feel I get that they really trust their director and follow his command. Always an emotional experience to witness them.
2. Choir of St. John's College, Cambridge
Intense sound, deep and colourful, lush and strong, with lots of drama. Great in 'darker' repertoire - Tavener, Duruflé, Howells.
3. Choir of Westminster Abbey
Very precise and controlled sound. Great in traditional, refined repertoire like Elgar but able to pull many different strings (Mathias, Bach, Pärt were only three composers I heard them perform works of when I attended Evensong).
I know I left King's College out and I need to consult with myself whether they are in 3rd position and Westminster Abbey in 4th - but I've never heard King's live as opposed to Westminster Abbey which gives the Abbey an advantage...