The rivalry between Old World and New World wine cultures is a source of spirited debate. Arguments over the tension between tradition and modernity, authenticity and innovation-all relating to the hundreds of data points influencing grapegrowing and winemaking-make for lively discussion. More often than not, the opinions are based on long-held beliefs and predispositions that usually say more about the parties involved than about objective outcomes. For those who merely want to find the best wines for the money, no matter where they're from, the route to enjoyment is easier. Wine Spectator's Kim Marcus explains.