You already know that anime is good but there are just moments when the anime soundtracks just make them better. You can probably think of some anime series that you love a lot but they're also some that you like more because of the accompanying OST. The opening theme of Sailor Moon is something that a lot of people are familiar with. It can be enough to make people remember how it was like to be young again.
The soundtrack of Michiko and Hatchin is another series with a soundtrack that is well-liked by a lot of people. This soundtrack is very eclectic and it will showcase the beauty of the culture of the makers of the OST. It can transport you to a more exotic place without realizing it.
The question of which is the best anime soundtrack of all time is a pretty difficult question to answer. Even if you do not take people's individual preferences in to consideration, there are so many anime and so many that have fantastic soundtracks.
However, there is one name that commonly comes up during this conversation and that anime is called Cowboy Bebop. Cowboy Bebop is a very popular anime but it is also very popular for it's amazing music. Many albums were made just to accompany the Cowboy Bebop anime. Other popular choices are Naruto and Full Metal Alchemist.