The best WWII general?

[KrooK]

Zhukov was good general but not great. Everytime he fought, he got big advantage. Under Moscov Russians maybe won, but they lost 1.000.000 soldiers. Into Berlin operation despite superb advantage they lost from 300.000 to 600.000 soldiers.
Best commanders of WW2 was O'Connor for his 1940 campaign. 40.000 soldiers crushed 200.000 fortified enemies.
Good job did Kesserling into 1943 in Italy. He stopped allies for long time with quite small forces.

[Sarmatian]

Zhukov was good general but not great. Everytime he fought, he got big advantage. Under Moscov Russians maybe won, but they lost 1.000.000 soldiers. Into Berlin operation despite superb advantage they lost from 300.000 to 600.000 soldiers.
Best commanders of WW2 was O'Connor for his 1940 campaign. 40.000 soldiers crushed 200.000 fortified enemies.
Good job did Kesserling into 1943 in Italy. He stopped allies for long time with quite small forces.

I don`t think that you can say that a military commander is "the best" on the premise of one or two battles.

Also, casulties of soviet troops which were under direct Zhukov command during the attack on berlin was about 4%, lower than other soviet commander during the attack, and his troops were involved in the most intense fighting.