So just to get it outta the way, I'll state, that i'm a cav/1h shield hybrid, but, i'd like to think my suggestions are observational AND simulator focused, rather than biased towards my class.
1) Raise tremendously, glance chances of arrows against heavy armors.
2) Lower significantly, movement speed in heavy armor.
3) Raise natural armor value on horses (unarmored horses are squishy now, and really to vulnerable; raise the upkeep or something to counterbalance, but, unless your a HA, theyre near useless except to 'sneak kill' someone at this point)
4) make 1h and 2h stab animations more visible, and less 'extended and then wiggle affective'
6) reduce shield magic bubble, and linear strength to shield with shield skill increase, but, perhaps raise shield speed more with more shield points, to counterbance to an extent. mostly a nerf though.
7) lower slightly polearm swing speeds (the longer the more lowering, (unless its a 'light-headed' weapon like a spear, perhaps just a lower threshhold for a significant slowness to heavy medium long and above), at the same time DO NOT lower stab speeds on polearms.
8) make jumping less effective, (height & length) and extremely gimped on a sliding scale, once armor reaches medium, and nearly non-exsistent for heavy armor. maybe also make jumping from ledges more likely to do damage, and/or more damage, the more armor weight your wearing.
I'm not exactly sure how this all would exactly affect balance, but, it would make the field, more medieval feeling, i think.
Take into account, i'm just talking off the top of my head, and am a fan of the 'field' feeling as 'medieval' as possible, while retaining a good game balance at the same time. I'm prepared to be ignored, spit on, or trolled, because of these opinions.
I dont care. All I hope is someone on the dev side catches sight of them, and atleast thinks about them, and why I suggested them.