The contest holder is the ultimate judge in these matters. The name they chose may work for them personally, for reasons we may never know. We are giving the customer lots of options, which is all we can do.
As for judging names based on originality and uniqueness, it is a tricky and subjective matter and what we personally desire is often not the ideal or practical route. Many times it depends on the individual factors and needs of the contest and not everyone is looking for unique names. For example, I can guarantee you that many names with Nutri, Bio and Vita in them are going to win in the future, and have done so many many times in the past; but they are industry keywords and names with them often have exact or short palatable .coms available. Oak is a popular, overused and common word but it is a real word and has strong symbolic meaning, and some contest holders people want real, common and simple words or concepts so that customers understand the company name or philosophy.
If we are bent on giving contest holders unique and creative names (That we love) but they don't like or never choose as winner, what purpose does it serve?