1. David IV of Georgia
He was very young when was crowned. He inherited not only political and economical problems, but disastrous results from earthquakes of previous years. But in several years he managed to gain victory on Seljuks, who were hazardous for Europe and thus he saved not only his own country, but Europe too.
His name was widely spread in contemporary world and in Europe he was compared to St. Peter. He was savior also of Armenia and Shirvan (territory of modern Azrebaijan). These countries were quite week by that time, they asked the king David the Builder, to take them under his protection. By the way, the king was the only, who managed to free Ani, former capital of Armenia, and give it back to Armenians. So, his strategic point of view was covering quite a wide territories and what's main - he was not an Emperor, but maintained national state structure in each country, who went under his protection.
He managed to begin the Golden Age of Georgia, which lasted almost 2 centuries. That's why he is called Saint King David the Builder!
He was the greatest!

2. Alexander the Great
Alexander died when he was 32. He had come to the throne at 20. In 12 years he led a Macedonian army to the edge of the known world and conquered all in his path. If he had not died I doubt western Europe or Africa could have stood in his way and we would know look at his empire on par with the roman or British empire each of which took hundreds of years to build with countless generals.M+130
No other general is even thought of let alone referred to as Great. Great because he took armies further, motivated his men from the front of the line and faced the enemy on their terran but always on his terms.

He took an army to the ends of the earth, literally, and from with that he brought hellenic culture, philosophy, and technology to the world.

3. Tran Hung Dao

If the Mongolian Empire had the strongest army in the world during that period of time, then the one that defeated that army three times must be even more fearful. Therefore, 1 vote for Tran Hung Dao.M+1177
Under his command, Dai Viet (currently Vietnam) armies defeated 2 major Mongolian Invasions in 1285 and 1287. His victories over the mighty Mongol Yuan Dynasty under Kublai Khan are considerably the greatest military feats in world history with strategies of protracted people's war.M+937
The greatest general ever. One of the famous hero I Vietnamese historyM+893
He is the best

I thought you would be naming OBJ , ADEKUNLE BENJAMIN, IBB &,,Co

4. Napoleon Bonaparte

Simply a titan of military history. His enemies like his allies were all in awe of his boldness and talent. Sure, he lost battles, but a great general is not judged on the battles he lost, but the battles he shouldn't have won. And Napoleon from day one of his military career defied the odds.
Maybe the greatest soldier of all time.

5.Võ Nguyên Giáp

He deserves to be one of the best of the best of the best! He led a very weak Vietnam to fight against a far more powerful French army in terms of military and financial power within 9 years. He had bright and creative strategies to fight back and win over US Army, the strongest military ever in history in the next 20 years!

Adekunle Benjamin was among best generals in Nigeria

6. Genghis Khan

Genghis Khan ruled the largest contigious empire in the world to date: The Mongol Empire. It pretty much covered almost ALL of Asia and some parts of Eastern Europe. The Mongols pretty much killed anyone who got in their way and nobody could've stopped them. Even the Abbasid Islamic Empire couldn't stop them. Of course they were defeated off by the Mamluks, but remember the only reason they didn't conquer Western Europe was because their king got sick. Otherwise, who knows how the history of the world could've changed considering that Western Europe pretty much took over the entire world.

7. Hannibal Barca

Hannibal Barka will forever be remembered as the man who brought Rome to its knees. Such a feat has seldom been repeated, and many of my friends would never have even heard of Carthage were it not for him. Every battle he fought, the Romans had every advantage, numbers, terrain, you name it, the Romans had it. But the one thing they didn't have was Hannibal. He was, defeated, it's true. But as I said, Rome still had every advantage. The general who beat him did not beat him purely out of military skill the way Hannibal did.

8. Julius Caesar

ery few generals can boast having one so many pitched battles at such damning odds. He was a brilliant tactician, able to make effective use of his troops to achieve various and often unorthodox tactical advantages. To add to this, he was able to wage and win a civil war against a powerful general with an army of equal discipline and greater numbers AND the weight of legitimacy against him. He could not have done just anything to win the civil war. The politics of civil war in Rome were extremely tricky, and only a brilliant man could win a war while acting within the socio-political constraints of Rome to preserve his popularity and establish his supremacy.

9. Khalid ibn al-Walid

Khalid bin walid (R. A) is not was the most powerful military general or commander of all time and in the history of mankind.
Every time with very little troops of him he conquered large and monsterous military like persian and romans. I would say one thing about roman military that roman military were the most powerful military at that time and if I ask which nation has got the most powerful military in this generation then every one's mind will have an answer either USA or Russia. If we guage or measure power of Roman military with todays USA OR Russia's military then Roman military was 7 times powerful than USA or Russia military.

10. Nguyen Hue

Nguyen Hue or King Quang Trung was very talent in war strategies and tactics. He moved fifty thousands soldiers from Hue to Ha Noi (more than 600km apart) on foot in 3 days in the year of late 1780. He defeated Chinese Tang's army in 200, 000 soldier in one day. He defeated Thai's invasive army of fifty thousands soldiers also in few hours in another occasion. He defeated French's navy without a warship. He never lost one battle in his whole life.

I think the best of all time is Khalid bin waleed.