As of 2015, some good juicers with enough power to juice a whole apple include the Cuisinart CJE-1000 Juicer and Philips 1861, according to Best Juicer Finder. These juicers are very powerful and easy to use.
The Cuisinart CJE-1000 Juicer uses a 1000-watt motor, which extracts juices from fruits in a fast, convenient way. The juicer comes with a 3-inch feeding chute, which can accommodate a whole apple and various large fruits.
The Philips 1861 has a large inlet chute and a two-speed motor that works with both hard and soft fruits. The juicer is quiet and easy to use, and makes very frothy, smooth and tasty juice.