Kingdom Hearts is definetely my favourite because it has simple, but fun and addictive gameplay. It is a japanese game, released on the playstation 2,it was dubbed to English in 2003, it became a big hit in america, and its popularity spread over most parts of the world.
Apart from the gameplay another reason I love it is because its cutscene graphics were advanced for its time, along with the great voice acting and high quality soundtrack.
Some may have heard of the videogame Final Fantasy, which is from the same creator.
So far Kingdom hearts has 8 sequels, a HD remix will be realeased in 2013 and a possible kingdom hearts 3 will be made .