My order of priority (not importance) for wiki editing quality factors:

1. Accuracy

2. Navigability

3. Readability

4. Verifiability

5. Aesthetics

6. Uniformity (part of aesthetics)

7. Citations (part of verifiability)

I say "priority not importance" because while we need accurate, navigable, readable articles as soon as possible, it would be just as shitty to go forever with no citations as it would be to go a shorter time with no articles. Every element can be seen as of utmost importance (because the wiki is fcking important), and all these elements can take talent and hard work.