First suggestion to spear weapons (except for long spear) is that they maintain high speed when they start a thrust attack, like a charging thrust attack.
Second is that is that spears could be changed into 1 slot instead of 2 so hoplites with huscarl shield could also have a 1h, or so people like me can use a spear+shield with an axe as a reserve weapon. And to compensate maybe decrease their stats by a little or something. Only bad thing i see with this is that archers would be able to use spears as their melee.