Polearms are bugged.
Got my two toons beating each other with the same macro reversed (15 hit then parry with one, parry then 15 hits with the other).
Arkh got from 30ish to 47.3 parry. It was hit by Lamva's polearm.
Lamva got from 15 to 46 parry. Hit by Arkh's 2h sword.

Polearm hit are parried but, they don't improve the parry skill every hit (when you don't ear the mettalic sound of parry I think).

[Linked Image from w3.the-kgb.com][Linked Image from w3.the-kgb.com]