The following list is to me a list of DEFINITIVE outros and ways to finish some of the greatest songs ever written...as well as some personal favorites of mine. If you havent heard them, i definitely recommend finding them...
Yes - Heart of the sunrise (best outro ever ever ever, or ill stab you in the face)
Simon and Garfunkel - bridge over troubled water
Morte Macabre - symphonic holocaust (epic and intense as any ive heard)
King Crimson - Epitaph (cryahahahayinnnnggggggg)
At the gates - suicide nation (suicide, suicide...jaws...locked around your spine!)
In Flames - Behind Space (original from lunar strain w/ acoustic outro)
Judas Priest - Blood Red Skies (youll never take meee aliveeee!!!)
Morbid Angel - Nothing but fear (amazing solo outro by azagthoth...listen to it)
Fleetwood Mac - Sara (such an emotional and superb performance by stevie)
Led Zeppelin - Over the hills and far away (undeniably classic and catchy)
The Beach Boys - God Only Knows (fuckin duh .if you dont know it...kill yourself)
Marvin Gaye - Whats goin on (yea...again...duh.)
Elton John - Rocketman (makes you feel like you just experienced something very special in the world of music)
Carpenters - Rainy days and mondays (a bit cheesey yes, but some remarkable harmonies)
Bjork - Unison (her ending vocal bursts are maybe the most vocal intensity and emotion ive heard in music for a very long time.)
The Mars Volta - Citricaz ESP (ivve defeccteddd!!! with all the nutty stuff...very interesting stuff for music made a few years ago)
Paatos - Tea (maybe the most haunting ending to a song...ever. ive been hooked ever since.)
thanks for reading everyone! and thanks for starting this thread. i havent had this much fun on this forum in a while...playing cat and mouse with my albums was a challenge.