taste is individual: "se non disputante".
so, first of all order/drink/like what you want - not what others/conventions/I say/write.
All beverages with bubbles behave/taste different under different air-pressure: there will be more bubbles once you are airborne - and the champagne will be "flat" much faster afterwards - but may be that's what you individually want - and may be, you don't care, or may be that you even don't notice because you don't compare. The Connaisseur will enjoy his/her glass (or two) of champagne best before being airborne - on ground in first/business-class: the bubbles are not yet influenced by falling air-pressure and the champagne is not yet "shaken"!
With champagne (and for the differences between the brands) the bubbles (and their quantity being released per second etc.) matter a lot.
AND PLEASE DON'T BE SO CRUEL TO CHAMPGNE TO "TWIRLE" THE BUBBLES OUT - THE CHAMPAGNE-PRODUCERS HAD A LOT OF WORK TO "PUT" THE RIGHT AMOUNT OF BUBBLES IN.
[This message has been edited by Rudi (edited 01-19-99).]