Got some more stats:
Heavy Long Hafted Spiked Mace Gen1
weight 3.5
requirement 13
spd rtng 93
weapon length 138
swing damage 37, blunt
thrust damage 22 blunt
Knockdown
Also, some of the stats are really fucked up, not only those of the polearms. E.g. flanged mace:
Heavy Flanged Mace Gen1
weight 2.5
requirement 7
spd rtng 98
weapon length 70
swing damage 27, blunt
thrust damage 0 pierce
Knockdown
Scary Flanged Mace Gen2
weight 2.0
difficulty 12
spd rtng 97
weapon length 70
swing damage 29, blunt
thrust damage 0 pierce
It gets lighter, difficulty raises and it loses knockdown. Great! Would have been too good to have a spd 100 blunt weapon with knockdown...