Khalid ibn al-Walid
Some others, often overlooked from a Western viewpoint, would be Subutai, Timur the Lame (Tamerlane), Belisarius, Zhukov, and Suleiman I. There are more.
Arguably Marius and Sulla were the equal, if not better than, Caesar. And Pompey was no slouch either. And another great Roman general was Scipio.
Some more modern generals not mentioned are Fredrick the Great and Gustavus Adolphus, plus Rommel.