My opinion is that resolution is the most important component of image quality. It wasn't my opinion until I did an experiment which suggested that it was indeed the case. Designing reasonably objective experiments to pin down qualitative, undefined things like 'IQ' is hard. But I did my best. What I did was show people a series of images and asked them to rank them against 'IQ', 'noise' and 'detail', and then correlate 'IQ' against the other two, and it turned out that it had a higher correlation against 'detail' than 'noise' (which wasn't what I expected) I concludes that 'detail' is a more important indicator of 'IQ' than 'noise'. Impotant to say, I did not play to people's prior assumptions by identifying the images.
The thread on which I did this is here:
http://forums.dpreview.com/forums/readflat.asp?forum=1018&thread=29997924&page=1
(Images gone because the site on which I posted them is no longer current).
So, my opinion now is that detail is a greater weighted component of 'IQ' than is 'noise'. There are possibly other components.
Your opinion may differ, but I would claim that your opinion is based on your own prejudices while min is based on some investigation, at least.