top 5 sequels that are better than the original

1 terminator 2
2 dark knight
3 the godfather part 2
4 superman 2
5 spiderman 2

top 5 worst sequels

1 back to the future part 2
2 bad boys 2
3 matrix reloaded
4 speed 2
5 a nightmare on elm street 2: freddys revenge