Who shows more manliness in 'Macbeth', Lady Macbeth or Macbeth himself?

The term "manliness" can be interpreted both as
masculinity and courage. Macbeth, in William Shakespeare's Macbeth,
is obviously more courageous and heroic than her
wife.

From the very beginning, Macbeth seems to
have a hidden ambition in his mind to gain control over the royal power, but it is just
like a sleeping wish or dream. It is his better half who pours oil into the fire. She
persistently provokes Macbeth by ridiculing his valour, or sometimes by comparing his
courage with hers. Her excessive cruelty is expressed directly in act 1,
scene 7, when she utters:

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I would, while it was smiling in
my face.

Have plucked my
nipple from his boneless
gums

And dashed the brains
out, had I so sworn

As you
have done to
this.

When
Macbeth drowns into dilemma about killing Duncan, Lady Macbeth
derides:

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From this
time,

Such I account thy
love,. Art thou afeard

to be
the same in thine own act and
valour

As thou art in desire?
Wuoldst thou have that

Which
thou esteem'st the ornament of life,

And live a coward in thine
own esteem.

In
response to such cruelty in a woman, Macbeth says her to "bring forth men
children only". Lady Macbeth almost breaks the traditional image of
femininity - soft, kind and motherly.

Yet, Lady
Macbeth fails to surpass the boundary of womanliness. She fails to murder Duncan with
her own hands. Besides, neither she can tolerate constant murders going on, nor can
endure the guilt. Much earlier than her husband, she gives up by committing
suicide.

It is Macbeth who is much more heroic.
He, once being resolute to achieve his goal, goes on heroically. We find that his wife
and collaborator leaves him away forever in the time of crisis, almost all the
countrymen go against him, and more than that, he realizes at the end that he has been
totally deceived by the evils. Yet, he does not give up till
death:

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I will not
yield

To kiss the ground
before young Malcolm's
feet...

Yet I will try the
last.
(5.7)

Thus
is the heroism in Macbeth. It is the true courage and valour not to accept defeat in
life easily, but to try till the last moment. Delivering daring speeches and instigating
others does not prove anybody "manly". Action proves the
feature.

A character's manliness depends on his
or her firmness in the personality and resoluteness in the actions, which definitely
Macbeth has.