What would an ideal World War II assault ship look like?

What would an ideal World War II assault ship in the mould of HMS Fearless and HMS Intrepid look like?

Much like those later ships, with an internal docking basin carrying large landing craft; wartime landing ship dock designs were already moving in that direction.

An ideal ocean-going assault ship would resemble the later HMS Fearless and HMS Intrepid, with an internal basin for large landing craft. Landing ship dock designs appeared early in World War II and already anticipated that postwar arrangement. Such a ship combines long-range transport with protected carriage and controlled launch of its landing craft. The comparison connects the small craft covered here with the larger amphibious ships needed to deliver them.