I would like to see sovs and heroes give "parole" by not being able to fight against the faction that took them down for 20-30 turns unless attacked. Such parole would also cost them an item or 50 mana or gildar if no items are to be had. Or a spell scroll? Stand and Deliver!! 
The whole push them back city to city as they are immobilized at only 3-5 hp each time is silly. They should have more hit points but perhaps be more clumsy or more prone to spell failure during such fights to reflect their slow recuperation. As it stands, I one shot them at the top of a siege and mop up the rest of the mundane troops.
Whaddya think, Sirs?
