What properties should I buy in Monopoly to maximize my chances of winning?

To maximize your chances of winning in Monopoly, focus on buying the orange properties (St. James Place, Tennessee Avenue, and New York Avenue) and the red properties (Kentucky Avenue, Indiana Avenue, and Illinois Avenue). These sets have high rent-to-cost ratiOS and are statistically more likely to be landed on by opponents. Additionally, owning all the properties in a color group increases your chances of building houses and hotels, which can significantly increase your income from rent.