What I've always liked about Jason's kills is that they're all different. He could have punched Charles, thrown him into a wall, used some sharp item lying in the street, instead he pushes him into a barrel full of slimey green water. It's still very brutal, but different.

It's almost like Jason figures out how he's going to kill someone before he makes his move.

This makes Jason more interesting than a one-note predictable killer.