The adjective 'big' as it relates to wine often carries a slightly negative connotation. Well, if not a overtly negative, then at least, fairly rough. A big red wine is more often lauded for its power than its beauty. Perhaps those big wines that also maintain an air of nuance should be referred to as 'large' or 'grand'.
When it comes to large, grand wines, one of the world's up and coming regions is Canada's Okanagan Valley in BC. In fact, one of Canada's biggest wine-glomerates, VinCor, has partnered with a band in Bordeaux (Groupe Taillan) to develop grand Bordeaux-style winery. Osoyoos Larose produces complex, character-full grand/large wine. The 2004 Petales d'Osoyoos (~$27) may be a 2nd label wine, but it's also lovely and grand. Petales is largely blackberry, earthy spice and plum preserves. If you happen to live near the 49th Parallel, matriculate over the border and grab this wine for turkey day. At a minimum, try it before the Loonie laps the Greenback on the exchange front and the wine costs you as much as a 'first label' vino.
If you're still having difficulty wrapping your brain around the whole Big v. Large concept, let Lyle teach you. His band is most definitely large rather than big. Listen here.