These are the latest RC animation files, they make significant changes to how pikes fight (as well as some other updates). I don't know if they are compatible with 6.3 or not, they probably are.
http://www.megaupload.com/?d=42XKJ9X0
Before using, back up your data/animation folder and data/descr_skeleton file. Then
extract the download to the data folder.
Following this step, make a backup of the data/export_descr_units file, then go through data/export_descr_units and manually change all the pikemen defense values to half their present values, and round fractions
down.
eg:
stat_pri_armour 4,
2, 0, flesh => stat_pri_armour 4,
1, 0, flesh
stat_pri_armour 4,
3, 0, leather=> stat_pri_armour 4,
1, 0, leather
stat_pri_armour 11,
1, 0, metal=> stat_pri_armour 11,
0, 0, metal
Yes defense values can be zero.
These changes combined with the new anims make pikes about right balance-wise.