there is of course no defnite answers, but i would like to condemn you for your obvious eurocentric choices.

j/k
anyhow, on my list of the top:
- Genghis Khan - ultimate conqueror
- Asoka - one of the nicest emperors ever
- Quang Truong - Vietnamese Emperor who nearly would've beat the crap out of China had he not died
- Alexander the Great - nice conquests
- Theodora - shes hot, and shes got brains.
But, i do object to some of the choices on the list...
Mao: i don't want to debate this.
Lenin: Similar condition to Mao, except there wasn't as many deaths
Franklin Roosevelt: Thuogh i wouldn't say hes horrible, i think he is sometimes overrated... but im not really sure.