In the article Box Wines – Better Than You Think W. Blake Gray taste-tests more than 20 wines that came out of a box.
Here are his recommmendations for best boxed wines available in the US:
2013 Wineberry Château Tassin, Bordeaux Blanc
2012 Vin Vault Cabernet Sauvignon, California
NV Vin Vault Pinot Noir, California
2013 Sant' Evasio Barbera, Piemonte
2014 FishEye Pinot Grigio, South Eastern Australia
2012 Jewelry Box Chardonnay, Central Coast
2013 Maison Cubi Syrah Carignane, Vin de France
2014 La Petite Frog Picpoul de Pinet, Languedoc
2014 Maison Cubi Sauvignon Blanc, Côtes-de-Thongue
Source: Box Wines – Better Than You Think