We settled on prosecco (for bellinis) and a blanc de blancs for our wedding, but that's because we couldn't get decent cava up from Spain in the necessary quantity. If you like blanc de blancs there are certain to be some cava examples you would like if you had the chance to taste enough.

Here's the blanc de blanc thread I created from when I bought my first case
http://www.flyertalk.com/forum/briti...champagne.html
It was £8.50 a bottle (now about $13)