Have you tried the Macdonalds Jr. Country Grilled Chicken Burger? If you're a big fan of cheese burger, then you should have not miss this. The burger come with Grilled chicken patty, red and white cabbage, carrots, lettuce and onions and chargrilled sauce! This is really a perfect combination, myself wasn't a really great fan of macdonalds but this country grilled chicken burger really tempting. To me this would be the best burger among all the burgers available in Macdonalds.
Links:
[1] http://www.bestfoodnetwork.com/node/69