Napa & Sonoma Valley Wine Tours There are some differences between Napa Valley and Sonoma Valley. Sonoma Valley is typically more affordable than Napa Valley. In Napa, there are 390 wineries that produce over 1,000 brands of wine. In Sonoma Valley, there are 450 wineries. Sonoma is more expansive and spread out. The best wines in Napa Valley are Cabernet Sauvignon, Chardonnay, and Merlot. The best wines in Sonoma Valley are Chardonnay (unoaked), Pinot Noir, Zinfandel, Red Blends, and Sparkling Wine.