Which champagne should be drunk second?

Hello, I have two bottles of champagne that will be opened on the same night, but I’m not sure which should be drunk first and which second. Any advise…? One bottle is non-vintage Billecart-Salmon Brut Reserve, the other is a Nicolas Feuillatte Brut Reserve (also non-vintage). I’m leaning toward the NF first and BS second, but am not sure… Thanks!

I’m with you, Nicolas Feuillatte first, Billecart Salmon second.
Suspect you’ll get advice on both sides here.

NF first BS second

NF then BS or both at the same time and compare for future reference.

Concur with all of the above, hopefully they’re both in good shape—do report back! And welcome to the board champagne.gif