2 bottles so far this year... out of 6!
2003 Domaine de la Vougeraie Savigny-lès-Beaune 1er Cru Les Marconnets (massive seepage as well)
2001 Domaine du Vieux Lazaret Châteauneuf-du-Pape Cuvée Exceptionnelle (more likely Brett than corked)
Although my sample size of flawed wine has been (thankfully) small, I've noticed that a higher percentage of French wines tend to be affected. Also that wines >5-7 yrs or so tend to have a higher failure rate than younger wines. What trends do you see in your flawed wine?