wedding toast

[engaged]

Looking for champagne to serve at my wedding. Honestly, I don't have the experience to really tell the difference myself, but I want to serve the best to my guests at a given price point.

Recommended to me by my chef are:
* Piper Sonoma - $11.98 per bottle
* Pacific Echo (Scharffenbereger) - $13.98
* Roederer Estate Brut - $15.98

Comments? Of those, which is the best? At a similar price point, what others would you suggest are even better?

Would appreciate your advice. Thanks.