AXE, SWORD, SPEAR, CLUB - the differences

[Stazi]

Does anyone know the differences between these weapons? I mean only the 70th column in the gnome editor.
I know the advantage of SPEAR - it removes enemy charge bonus (maybe cavalry only - i don't remember) and reduces "pushback" probability.
What about three other weapons?
---- EDIT----
A small thing I've found: SWORD gives +1 attack against SPEAR.
Still don't know anything about CLUB and AXE.