It honestly depends on individual preferences. Given below are the key characteristics of Alpine and Pioneer stereos, Alpine 1. Alpine stereos are good entry level stereos for stereo enthusiasts who want to upgrade their factory stereo. It comes with all the useful features and functions you will need. 2. It has many advanced audio features which can be a little difficult to navigate through. These stereos are great for audiophiles. 3. Alpine stereos tend to be a little expensive. Pioneer 1. Pioneer stereos also have many modern features with a lot of inputs and outputs. 2. They tend to have a neat layout and the controls are easy to navigate.  3. They tend to have more affordable models.