Texas is among eight states that counts the United Parcel Service as its most popular brand. In addition to the Lone Star State, UPS (NYSE: UPS) was cited as the single-most popular brand in Idaho, Utah, Arizona, New Mexico and Maryland. UPS tied with Coca-Cola (NYSE: KO) and Mercedes-Benz as the most popular brands in Georgia and with McDonald's (NYSE: MCD) as the most popular brand in Illinois. Business.org surmised that UPS's widespread popularity might be tied to the company's millions of deliveries…