Ben 10: Alien Force, in my humble opinion, is entirely superior to the original. As the characters have matured, the story has followed. The series has grown much darker, and it fits in surprisingly well, considering the general lightheartedness of the original series.
The characters have not only aged, but they've developed quite well with their surroundings. The formerly goofy and energetic Ben is much more collected (aside from the many situations where his powers take over). The villains are much more sinister, but balanced, showing signs of weakness in many situations while remaining incredibly intimidating.
While the name puns are still rather weak, it's a staple in the series, and just feel in place.
Ben 10: Alien Force is one of those rare gems that shows that great effort is put into making every episode. A must watch if you liked the original, worth looking into even if you didn't.
The characters have not only aged, but they've developed quite well with their surroundings. The formerly goofy and energetic Ben is much more collected (aside from the many situations where his powers take over). The villains are much more sinister, but balanced, showing signs of weakness in many situations while remaining incredibly intimidating.
While the name puns are still rather weak, it's a staple in the series, and just feel in place.
Ben 10: Alien Force is one of those rare gems that shows that great effort is put into making every episode. A must watch if you liked the original, worth looking into even if you didn't.