I'm usually an archer - but that does not count here.
I would love to see stakes. Not because I hate cav. I hate Cav the same as I hate Polearmers, twohanders, shielders, archers. But not as much as I hate throwers or XBownubs.
Stakes would bring a bit more tactical fun into the game. I would make them more expensive than a siegeshield. maybe 1k more. And they have to have 150% Width of a Shieldwall Think that would be great.
Siege-Shields should, by the way, same as ladders, have more HP. I kill a ladder with one strike of my GLAxe and a Siege-Shield with two. thats boring. they need 50% more HP. at least. Especially ladders are broken by archers before they reach the wall.