I want to lop an arm off, pick it up and finish them off by beating them to death with it. I’d tell them to stop hitting themselves while i did it.
But in all cerialness It would be great. Swing arcs for the weapons. Something like that old epic games game Rune. Or Jedi Knights:Jedi Academy where you actually control your lightsaber with the mouse and not just click and have it swing. Killing floor, though not super intricate, at least has different swings for most of the directions you are moving in. Blocking, parry and perhaps shields perhaps?