There is no "Home One" type ship, thats a MC-80b just like the other one. The wingless ones are MC-80a's; the differences between them are not just little paint jobs, they have totally different hull configurations based on a loose design. They have "bumps" in different places and engines are sometimes larger or smaller, there are many differences and some are smaller or larger than the other ships of thier class; ex' Home One is a MC-80a type ship built as a super large passenger liner then converted to be Admiral Ackbars flagship after the battle of Hoth, as it was not meant to go head to head against Imperial ships its biggest advantage is its huge size and 10 Starfighter squadrons. It doesnt have as many guns as even the much smaller Victory class star destroyers so it relies on other ships and starfighters to protect it.