That statement puts him in the same group as Che and Fidel. The last two would have to rank higher. They defeated Batista's 40K army, and it was Castro's second attempt at a revolution, the first one netted him a prison sentence from which him manage to get of in part by the interference of the US governement who thought they would be able to control him later if he ever made it to the top.
Meanwhile, by comparison, Roosevelt took a huge army there for a mop-up operation of the Spanish Army after Maceo and Garcia had already inflicted big wounds on the Spanish imperialist. Then he twisted arms to install Estrada Palma, a nobody, as president, who turned around and gave them Guantanamo.
Not only that, he complete supported the squashing of the Philipine, in which several hundred thousand unarmed natives were killed by American weapons.
On the other hand Castro created some national parks in the Sierra Maestra as did the Soviets and Mao. But primarily, the statement you made talks about blood, and that's what Roosevelt was talking about. In that respect next to the others he looks like a pip sqweek. Please read your history.
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