Handsome means
1. exciting aesthetic pleasure due to proportion, symmetry, or elegance.
2. having a pleasing appearance that causes romantic or sexual feelings in someone.
Nowadays handsome is used to describe men, so for many people it means beautiful in manly way.
Is a handsome man as attractive as a beautiful woman? It depends.
For many women handsome men are more attractive than beautiful women.
For many men beautiful women are more attractive than handsome men.
Other adjectives for describing very attractive men are:
Stunning
Gorgeous
Hunky
Good-looking
Beautiful
Hot