Front load washing machines are generally more energy efficient and use less water.  Front loaders are typically gentler on clothes during the wash and spin cycles making them a popular choice.  They tend to sit lower to the ground where some bending of the back is necessary. However this is easily overcome with a raising box where the top load washing machine is mounted on top of the box making it more accessible.  Top loaders come with various features including autodose (where the machines auto adds washing liquid), temperature control and spin speeds. All top loaders come with a manufacturers warranty with an optional backup plan to extend protection.