Macbeth:
"We will proceed no further in this business. He hath honor'd me of late." (line 61)
Macbeth is conflicted and reluctant to commit murder. He is aware of the moral implications of his actions and feels guilty about betraying Duncan's trust. He also fears the consequences of his actions, such as the possibility of being caught and punished.
Lady Macbeth:
"Fie, what a coward you are! I am ashamed To think you dare not do it." (line 58)
"What beast was't, then, That made you break this enterprise to me?" (line 62)
"When you durst do it, then you were a man; And to be more than what you were, you would Be so much more the man." (lines 69-70)
Lady Macbeth is more ambitious and ruthless than Macbeth. She is determined to achieve power and status, even if it means committing murder. She is not afraid of the consequences and believes that Macbeth is capable of carrying out the plan. She uses her manipulative skills to persuade Macbeth to go through with the murder, calling him a coward and questioning his masculinity.
Based on this scene, Lady Macbeth seems more likely to commit a murderous plan. Her ambition and determination outweigh her moral concerns, and she is willing to take risks and face the consequences to achieve her goals.