Finrod Felagund is the coolest Elven king (the one in the Silmarillion I mean)

[Finrod Felagund]

FINROD FELAGUND

Thus the realm of Finrod was the greatest by far, though he was the youngest of the great lords of the Noldor.
Felagund strove with Sauron in songs of power, and the power of the king was very great; but Sauron had the mastery as is told in the Lay of Leithian…

Sauron chanted a song of wizardry,
Of piercing, opening, of treachery,
Revealing, uncovering betraying
Then sudden Felagund there swaying
Sang in answer a song of staying
Resisting, battling against power
Of secrets kept, strength like a tower
And trust unbroken, freedom, escape
Of changing and of shifting shape
The prison opening, the chain that snaps

Backwards and forwards swayed their song
Reeling and foundering as ever more strong
The chanting swelled, Felagund fought
And all the magic and might he brought
Of Elvenesse into his words
Softly in the gloom they heard the Birds
Singing afar in Nargothrond
The sighing of the sea beyond
Beyond the western world on sand
On sand of pearls in elvenland

Then the gloom gathered; darkness growing
In Valinor the red blood flowing
Beside the sea where the Noldor slew
The foamriders and stealing drew
Their wite ship with their white sail
From lamplit havens. The wind wails
The wolf howls. The ravens flee.
The ice mutters in the mouths of the sea.
The captives sad in Angband mourn.
Thunder rumbles, the fires burn-
And Finrod fell before the throne.

Thus King Finrod Felagund, fairest and most beloved of the house of Finwe fulfilled his oath.

From Sirion’s Isle they passed away,
But on the hill alone there lay
A green grave, and a stone was set,
And there there lie the white bones yet
Of Finrod fair, Finarfin’s son
Unless that land be changed and gone,
Or foundered in unfathomed seas
While Finrod walks beneath the trees
In Eldamar and comes no more
To the grey world of tears and war

The green grave of Finrod Finarfin's son, fairest of all the princes of the elves, remained inviolate.
But Finrod walks with Finarfin his father beneath the trees in Eldamar.