[Bernard]

Since the author started his list with Hitler, I decided to look up the numbers each of the following bad people killed; Hitler, Stalin, Mao, Pol Pot. Here's what came back from my internet search:

Mao - 40 to 80 million.

Stalin - 20 to 60 million.

Hitler - 12.2 million (6 million Jews, 6.2 non-Jews)

Pol Pot - 1.5 to 3 million.

So just based on big names, Communists lead Fascists by a lot. 61.5 to 123 million, compared to 12.2 million. Or a ratio of either 5/1 or 10/1.

Not sure if other searches at other times would produce different results.

[Pontiac]

When looking at murderous dictators I think it useful to look at ratios of population to those killed.

Looking at the percentage of those killed to the total population I think Pol Pot wins.

[Harmless Teddy Bear]

Seventy million in China alone by the Empire of Japan. Hirohito should be near the top on the murder board but somehow never gets listed.

Curious.