These are mostly my personal impressions of Champagne vintages from 2002–2023. I’ve tasted quite a few wines from 2002 through 2015, and for all of the vintages I’ve also leaned on comments from producers, critics, and other sources I trust, especially for the off vintages I mostly avoided. Specifically for the years after 2015 where I haven’t opened many.
Post your impressions, corrections, or disagreements and I’ll tweak the chart as we move toward a Berserker consensus. Unless of course you’re a clear outlier, or I simply disagree with you 
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2002
Excellent overall. Some reports of over-ripeness in Chardonnay can lead to a shorter drinking window, although my Ruinart and Taittinger Comtes are still drinking remarkably well now.
2003
Hot year. I don’t think I’ve opened any (correction: I found a positive note of mine on 2003 Philipponnat Clos des Goisses)
2004
Very strong for Chardonnay and the Côte des Blancs, less so for black grapes. Brad Baker: “2004 was anything but an off-vintage, especially for Chardonnay and the Côte des Blancs.”
I’ve loved the BdB’s; Comtes, Blanc de Millenaires, Doquet. Also, Cristal did very well. Krug seems excellent although it took a while.
2005
Decent but somewhat uneven. Ripe fruit and relatively generous yields. Wines can show richness and roundness but may lack precision and tension. I haven’t opened many, but really liked Comtes and Ulysse Collin Les Pierriéres.
2006
Warm vintage that produced generous, ripe wines. Not considered among the very top years, but there are many excellent bottles and some producers made outstanding wines. I’ve particularly enjoyed a number of 2006 Champagnes (Taittinger Comtes, Cristal, Vilmart CdC).
2007
Warm spring and uneven summer. Maybe softer and approachable rather than structured for long aging. Chardonnay showed well and many wines were enjoyable young, although Comtes BdB is evolving beautifully and showing no signs of peaking.
2008
Exceptional. Excellent acidity and structure with long aging potential. Pretty much all grapes performed well. Too many outstanding examples to list
2009
I like this generous vintage. Warm growing season. Ripe and approachable wines. To my palate, wines that are dense year in and year out can be over-the-top (e.g. Clos des Goisses, Cuvée Winston Churchill) but otherwise, the ones I’m opening seem to be aging quite well (e.g. Cristal)
2010
Generally considered a poor vintage with uneven quality. Challenging weather and rot pressure. An off year, I didn’t buy or try much. Careful producers made some very good wines. Vilmart CdC seems fine
2011
Another difficult year with heat spikes and uneven ripening. An off vintage overall, though there are some excellent individual successes (2011 Larmandier-Bernier Vieille Vigne du Levant is stunning despite vintage generalizations). Another vintage in which I didn’t buy or try much.
2012
Excellent. Low yields due to frost and hail, then strong finish led to a great vintage. So many good and excellent wines. I can’t think of a '12 I haven’t liked
2013
Very good to excellent, especially for Chardonnay. Exceptional Chardonnay while Pinot Noir is pretty good (Probably the reverse of 2012). They show good tension and I think there will be good aging potential
2014
Not as strong as 2012, 2013, but a decent vintage with some very good wines. The middle of the season was cool, dark, and wet. Grapes were healthy and yields good, but achieving ripeness was sometimes a challenge. September’s warm days, cool nights, and wind helped salvage the vintage.
2015
Warm vintage producing ripe wines, initially hailed as excellent. However many wines are showing late-appearing odd herbal or grassy notes.
2016
Variable vintage. Frost and hail caused significant yield losses. Pinot Noir and Pinot Meunier performed better than Chardonnay. The year looked disastrous early in the season but conditions improved in the final weeks before harvest.
2017
Mostly weak vintage. Extremes of temperature. Cold winter followed by summer heatwaves. Pinot Noir struggled in many areas while reportedly Chardonnay performed a little better.
2018
Very large crop with generally high quality fruit. Wines tend to be fruit-forward and approachable. Some reports of softness or dilution in certain bottlings due to the large yields. Lower acid levels
2019
Excellent vintage with strong aging potential. Balanced ripeness and acidity with good concentration.
2020
Third consecutive warm vintage. Small and early harvest. Acidity better than 2018 but still lower than cooler years. Early to say, but still seems to be a good vintage
2021
Very challenging vintage. Severe frost, frequent rain, mildew pressure, hail, and storms created major difficulties. Quality may be best in the Côte des Blancs where Chardonnay handled the conditions better, as is often the case.
2022
Warm growing season with August rains that helped freshness. Generous crop and generally showing promise.
2023
Difficult vintage. Large crop but significant disease pressure; mildew affecting mostly black grapes, along with botrytis issues.
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