My favorite is Psalm 83.  I like it because it expresses my longing to be in Our Lord's presence.  That it is traditionally prayed right before Mass is no coincidence.

64 or 61

I don't think I can come up with my favorite.  Perhaps I can come up with my top five. Perhaps.  I'll think about it.

If I had to scale it down to five, it might be:  Psalms 4, 18, 44, 53 & 147.   But there are so many that I love.  

 

Psalm 73 is very powerful, and quite applicable to our times.

[1] Understanding for Asaph. O God, why hast thou cast us off unto the end: why is thy wrath enkindled against the sheep of thy pasture? [2] Remember thy congregation, which thou hast possessed from the beginning. The sceptre of thy inheritance which thou hast redeemed: mount Sion in which thou hast dwelt. [3] Lift up thy hands against their pride unto the end; see what things the enemy hath done wickedly in the sanctuary. [4] And they that hate thee have made their boasts, in the midst of thy solemnity. They have set up their ensigns for signs, [5] And they knew not both in the going out and on the highest top. As with axes in a wood of trees,

[6] They have cut down at once the gates thereof, with axe and hatchet they have brought it down. [7] They have set fire to thy sanctuary: they have defiled the dwelling place of thy name on the earth. [8] They said in their heart, the whole kindred of them together: Let us abolish all the festival days of God from the land. [9] Our signs we have not seen, there is now no prophet: and he will know us no more. [10] How long, O God, shall the enemy reproach: is the adversary to provoke thy name for ever?

[11] Why dost thou turn away thy hand: and thy right hand out of the midst of thy bosom for ever? [12] But God is our king before ages: he hath wrought salvation in the midst of the earth. [13] Thou by thy strength didst make the sea firm: thou didst crush the heads of the dragons in the waters. [14] Thou hast broken the heads of the dragon: thou hast given him to be meat for the people of the Ethiopians. [15] Thou hast broken up the fountains and the torrents: thou hast dried up the Ethan rivers.

[16] Thine is the day, and thine is the night: thou hast made the morning light and the sun. [17] Thou hast made all the borders of the earth: the summer and the spring were formed by thee. [18] Remember this, the enemy hath reproached the Lord: and a foolish people hath provoked thy name. [19] Deliver not up to beasts the souls that confess to thee: and forget not to the end the souls of thy poor. [20] Have regard to thy covenant: for they that are the obscure of the earth have been filled with dwellings of iniquity.

[21] Let not the humble be turned away with confusion: the poor and needy shall praise thy name. [22] Arise, O God, judge thy own cause: remember thy reproaches with which the foolish man hath reproached thee all the day. [23] Forget not the voices of thy enemies: the pride of them that hate thee ascendeth continually.

Regarding Psalm 73, yes, I've often thought the same.  And with regards to Psalm 50--well, who of us could do without it?   There seems to be a psalm for every occasion we might find ourselves.  

Psalm 73 is very powerful, and quite applicable to our times.
 

As is Psalm 136.  "Upon the rivers of Babylon...."

My favorite Psalm is Psalm 21. But I do not know many psalms. It is one part of the Bible I have never read straight through, I have only read some of the Psalms individually.

My favorite Psalm is Psalm 21. But I do not know many psalms. It is one part of the Bible I have never read straight through, I have only read some of the Psalms individually.

If you pray the Breviary, that will help immensely.  

http://divinumofficium.com/cgi-bin/horas/officium.pl