Outlining a great conclusion to a story: I am really drawing a blank on this one, I am a visual artist, not a verbal artist. It would go something to this effect:

• A story that builds itself up throughout
• great characters with:
• what makes them tick or drives them
• personality
• relationships with others in the story
• great story line, and sometimes crossing plots that relate to one another
• great visual pictures defined by the author's writing style
• A story that captivates any one's attention. Some readers don't get captivated right away
• A great ending could have:
• a surprise ending (but with closure; I hate an ending without closure)
• a twist ending (a whodunit with a surprise villain)
• a ride off in the sunset sort of ending where everyone is happy
• a sad ending where the emotions are played with

As I stated before, I do not like an ending where you say out loud, "what the hell!" I want closure no mater how it is (as described above); I do not like to invest my time to be left with no clue at the end!

This is just my opinion.