Strictly on the human level (no theological claptrap, please).
Mohammed is the best known and understood of all fathers of any religion. His life is fully explained and scrutinized, nothing left concealed or masqueraded, there are no stupid miracles that clutter the lives of other Holy men: we are always at the presence of a real man with all the virtues and all the shortcomings.
The figure of Moses is a lot more obscure, due to aberrations of age and mores. Still, from what can be glimpsed of a real man, Moses must have been very much like Mohammed.
Both M&M were stern men of the desert, enraptured by visions of divine revelation.
Both split their communities, put their lives in danger and lead their adherents away into the desert exile for years (Exodus and Hijra), only to gather force and take over their declared possessions (Canaan, Mecca).
Both, while not great warriors, were certainly determined to use brutal violence to achieve their goals and instill their authority (Golden Calf and Banu Qurayza massacres, for example).
Both were fully committed to connubial pleasures and most certainly not ascetic in any way (unlike some other prophets we know).
Basically, both M&M come through as nomadic Semitic prophets: no-nonsense, down-to-earth, tribal leaders, steeped in tradition, humble before God, enthralled by revelation, enforcers of few simple rules of devotion.
Dare to disbelieve?