Haha, well for some of us Champagne (and wine in general) is a career.
I'm only a jnr sommelier, but i've focused my studies in sparkling so this is my opinion on each of the offerings:
Bollinger NV: quite a full bodied champagne, great mousse with long finish and quite crisp acidity. What I like most about a NV Bollinger is that its quite powerful and has a big body for it's price point, so its one of those sparklings you either love or hate. The winemakers style is to let the pinot grape skins come into contact a little more than would usually do. Eat With: I'd probably most like to drink this with the Salt & Pepper squid in the F lounge, and its full body means its probably the choice pick for heavier dishes like steak, or rich tomato dishes (but really you should just go for a red with that...)
Veuve Ponsardin: probably what most people will enjoy, quite an approachable wine with fairly neutral palette. Good on the nose, nice color and decent mousse if bottle kept closed properly. Medium-full body with toasty brioche flavours, and a bit of honey. Quite high autolysis with Veuve, so you get that bready kind of flavour. I'm a little biased, Veuve is not my favorite, I think its a bit over rated but its easy to drink, and by no means a bad champagne. Eat With: I'd probably like to have this with sweet foods, dessert, cakes, fruit, etc.
Tattinger: very fruity, and citrus flavours come out on the nose, and follow nicely through to the pallete. From tattinger I tend to taste mostly apples, peach with a bit of citrus acidity, but not too much, it still remains quite a juicy and satisfying champagne. Quite a long finish. Drink this if you like juicy sav blancs. Eat With: This would be quite nice with fish dishes, and light soups, or works as a good apertif for most dishes.
Overall these are pretty good choices, if not a little safe. They've stuck to fairly big winemakers which is a shame because there are some great small wine makers in champagne i'd like to see get traction. And instead of offering mass-produced Vueve, why not support our local industry and serve a nice bottle of Tasmanian Arras (better than most vintage champagnes on the market).