...I think the question relates to the best Manager as opposed to whether the 1970 team was better than that of the mid-80s. Colin Harvey always says that the mid-80s side (which he coached) wouldn't be capable of living with the 1970 side and I agree. That 1970 side was very special, but I loved the spirit of that mid-80s crew.
Anyway, regardless of who were the best side, I would plump with Kendal being the best boss. Its true that Catterick built more than one side, but he also had great riches at his disposal. John Moore's brilliantly steered us through a period when we were known as the Merseyside Millionaires. Kendal brought in the likes of Sheedy, Bracewell and Van den Hauwe to form the backbone of a team that not only conquered this country, but brought us a European trophy. The Catt also gets a negative for selling Bally.
Both great Everton managers though.