I thought the Slamina trailer was better as well, but SFSH was a way better film in my mind. I honestly didnt ind Slamina that entertaining, but SFSH was really sick in my mind.
What AJ does though is smart. Now that 4bi9 is an established name he doesnt need to release all the good bangers in his trailers to get people stoked on the movie. It saves a lot of good shots for the movie and makes things more exciting in a way. Thats probably why you thought the Slamina trailer was better then the SFSH one.