My opinion, stick with hydraulic. More than enough power to autolevel front to back, and side to side, and the controller make them all operate in sync, IOW, if it calls to level side to side, all 3 jacks on that side operate together. What you describe would torque the frame if not all operating in unison.
As for electric jacks, my buddy had them on his prior 5th. They didnt have enough lift capacity to level, only to stabilize.
It is odd to me, that a RV builder wouldnt go to 6 point hydraulic leveling if they already had front hydraulic jacks and presumably hydraulic slides as well.
Might check out lippert's system.