to the OP's question, here's a brief list:
any Opus One past 1999 vintage
any Joseph Phelps past 2001 vintage
any Silver Oak past 1995 vintage

And that's just California stuff!

any Beaux Freres ever.
any Graeser ever
any Marquis Philips. ever. at all. in history.
any Rombauer..any flavor..ever.

I have had a run of great luck lately though, haven't had a disappointing bottle in a while. Most recently had a 2003 Lynch-Bages, 2000 Chateau Giscours, 2004 Clio, and 2001 Montsalvat that were positively amazing.

oh and I guess to make this relevant to the site: I'll be transporting a bottle of Casanova di Neri 2001 to Finland in July via UA/AY