Heh, have you tried MadToker's Killer Stone Axe? He made the first version of it and I have been keeping it updated since he quit. It modifies the base Stone Axe instead of adding a new one. You can play through the whole game with just this axe...lol.
The Killer Stone Axe is a beast, I have it on Nexus Mods site.
Also I keep RussianDude's grasscutter going I keep on Nexus for others to enjoy. I have a personal version of it that I made into the ultimate weapon that chops Zeds up from 120m away at 100 entity damage and 900 swings a minute. It's hilarious to watch and will get you though a Blood Moon easily. These are just for fun though, serious players who like a challenge would probably hate me, heh. But I don't care, the whole point of playing a game is to have fun, right? Not everyone has fun the same way.