There should be a satisfying thud whenever a hatchet hits a survivor, instead of just a blood sound. I think (for me at least) that would make it more satisfying than it is right now. Also, while you're at it, even normal hits should have a thud.
When low ranks and high ranks swf together, they should be put in high rank games. I got a rank 1, 2, 3, and 17 in the same game, when I'm rank 15. Mixed swf ranks should always be put in high rank games, so low ranks don't get stomped on.