Quito, formally San Francisco de Quito, is the capital city of Ecuador, and at an elevation of 9,350 feet (2,800 meters above sea level), it is the highest official capital city in the world. Located in Ecuador, South America, Quito is situated in the Guayllabamba river basin, on the eastern slopes of Pichincha Volcano, an active stratovolcano in the Andes mountains.
The only difference is the location on the animal. On a cow for example, the top sirloin is a slightly higher cut on the beast than the bottom sirloin. The generic term sirloin is another sirloin cut that is just above the tenderloin.
The larger side is a cross section of the strip loin, and has more flavor, better marbling, and less tenderness than the other side, which is smaller and pure tenderloin. A pork tenderloin will be tender, but tends to be dry, and needs moist cooking. Sirloin is something different: a cut from the upper hip not quite as uniform and tender as the loin/tenderloin, but easy to cook. The differences in pork cuts are subtle. Any of these cuts will be easy to handle if pork rather than beef.