i know it’s just a glorified shot glass, but my favorite glasses for drinking Champagne are my flutes, b/c they’re Tiffany. 
I prefer Zalto above all else. That said, I do like using white wine glasses when I am at tasting events because they allow you to open up a wine very quickly, but I find that when I use them at table, they tend to soften up and round out the palate more than I like. Zaltos strike a good balance for me because they allow for vigorous swirling, thus opening up the wine, but the shape also does a better job than regular glasses at highlighting the acidity of the wine, as well as preserving its bubbles.