There is only less deaths if there is a certain someone interfering. since it is likely there won't be a resolution to avoid angering fans of the other side, the war costs 20-25 people a month than the 5-10 peopel that get caught worshiping Talos by the Thalmor.
But like I said, neither choice was an option because neither Torygg or Ulfric should have been High King candidates. Whiterun is by far the safest City outside of direct Imperial control.