'Good code' is more of common sense than personal preference. Maybe you should have a look at one of the cited examples ;)
When deciding if code is good or not, surely there should be quantified criteria for assessment. Code cannot be judged to be "good" or "not good" without specific pre defined measures of assessment. I would suggest that close to 0% of employers that want to "see your code" are assessing against pre defined assessment criteria.
A good experience would be get 4 experienced developers to read and evaluate a piece of code; that'd raise some interesting practical aspects of their evaluation of its goodness.