I want the speaker to sound as close as possible to what I hear in live jazz concerts and symphony halls. This means natural warmth (not bloat) quick transients, but no brightness and as transparent from top to bottom as possible with great inner detail. You should be able to get all this at low or high volumes. Pin point imaging, depth, width all fall into play when you get all the other parameters, unless of course you are using omnidirectional speakers, which never seem to have precisely focused images. I also don't want the speaker to be a one guy or gals speaker were the sound is only good sitting in the middle. The speaker should be efficient and easy to drive and have beautiful WAF.
Your Preference: Resolution or Fullness?
Just saw this mentioned over at another forum and thought it'd be good to hear your thoughts. Do you place a bigger importance on a speaker's resolution or its overall fullness of sound? This can apply to any type of speaker model, whether it bookshelf/tower, etc.