The Saris Thelma 2 Bike Rack
This is my rack of choice and will forever be my rack of choice. No cloth straps or metal bits. Super simple to use and install. Put the bike in, pull the two ratchets tights and go. You can't beat that! It also folds flat and out of the way when you're not using it. You also can't beat the durability and reputation of the Saris product.