I suppose, as with many audio tests, one needs a reference point of some kind. Some people prefer bass heavy music and therefore say a "fat" sounding speaker is "normal" or perhaps someone who prefers classical type music might prefer hearing a more "forward" or detailed sound ect. I guess if the test is done with enough participants, either way there should be an overall census on what sounds "right".
I tend to discount any review or opinion that is too over-the-top or one that is very underwhelming.
