Well my next cav build is going to be 1h shield ( currently pole/1h shield cav, so basically dropping the polearms and switching up my stats a bit ) I designed this one to suit my own preferences
21 str
15 agi
4 Ironflesh
7 PS
5 Shield
5 Athletics
5 Riding
3 WM
131 One handed ( give or take a point considering the char planner is not completely accurate sometimes )
I personally like the idea of this build because it leaves me with reasonable speed on both horse and foot, also a fairly decent strength shield.