Personally I'm a big fan of Raymond Carver ('Happiness' and 'For Tess') and Charles Bukowski ('One For The Shoeshine Man')
But let me share a short one by Ezra Pound:
And the days are not full enough
And the nights are not full enough
And life slips by like a field mouse
Not shaking the grass.
Would love to hear some of your favourite poems!
Panache upon panache, his tails deploy
Upward and outward, in green-vented forms,
His tip a drop of water full of storms.
But though the turbulent tinges undulate
As his pure intellect applies its laws,
He moves not on his coppery, keen claws.
He munches a dry shell while he exerts
His will, yet never ceases, perfect cock,
To flare, in the sun-pallor of his rock.
"One of my favourite poems is John Agard's 'Put the Kettle On'..." That reminded me of the satirical sketch in "Beyond the Fringe," about the British during World War II, in which, no matter how bad things get, the husband says "Never mind dear, you put on the kettle, we'll all have a nice cuppa tea."
(The punchline is the news that there is going to be "rationing, and all that that implies." "Never mind dear, you put on the kettle, we'll all have a nice cuppa boiling hot water.")
One of my favorite short poems by Emily Dickinson:
This is my letter to the world that never wrote to me.
The simple news that nature told with tender majesty.
Her message is committed to hands I cannot see.
For love of her, sweet countrymen, judge tenderly of me.