Romeo and Macbeth are similar in the focus each has to achieve his heart's desire. Romeo loves Juliet, and life without her is something he can't imagine. Macbeth wants to be king and will do what it takes to make it happen. Both men are devoted to the women in their lives: Macbeth from the start, and Romeo "falls" in Act One, scene five. They both try to amke each woman happy. Juliet wants love; Lady Macbeth wants power. Both men are admired. In Macbeth, (at the outset) Duncan's sergeant praises Macbeth's might in battle, saying that he fought the traitor Macdonwald who had reinforcements (Irish soldiers), fought his way through them to face the enemy, and killed him. Duncan (King of Scotland) praises his friend and cousin, Macbeth.
