The 2005 Léoville-Barton, a Bordeaux Blend from the St Julien sub-region of Bordeaux, France, is a red wine with remarkable aging potential and complexity. Crafted predominantly from Cabernet Sauvignon and Merlot, with a hint of Cabernet Franc, this wine is praised for its depth and structure. With an alcohol content of 12.0% and sealed with a cork, it embodies the classic Bordeaux style.

James Suckling highlights its "full and muscular" character, noting its strong tannins and "long, long finish," awarding it a 96. Robert Parker's Wine Advocate describes the wine as having "deep cassis and red currant fruit," with earthy, spicy undertones, and suggests it is "probably a 30-year wine," giving it a score of 92. Mike Supple offers a glowing review, awarding it a 98 for its "extremely dark thick inky purple color" and "huge ripe juicy tannins," declaring it a "very balanced wine."

Wine Enthusiast applauds its "power and elegance," with a score of 97, commending its potential for aging. Wine Spectator echoes this sentiment, describing it as "racy and beautiful," with "supersilky tannins," and also awarding it a 96. Neal Martin's Wine Journal notes the wine's "multi-dimensional bouquet" and "superb delineation on the finish," rating it at 95.

Decanter appreciates its "polished aromas" and firm texture, giving it a 93. Jane Anson calls it "wonderful wine" with "muscular tannins" and "luscious fruit core," awarding a 98. Jeb Dunnuck praises its "full-bodied richness" and "great finish," scoring it at 97. The Wine Independent describes a "light to medium-bodied palate" with "epic length and depth," rating it 95.

Overall, the 2005 Léoville-Barton is a "powerful and compelling" wine, as noted by Decanter, with a consensus that it benefits from further cellaring to reach its full potential.