Anyone victory, bad or good ranking is about so many factors.
The draw, the performance, how many people like it, how many good song are playing in the same category as it , how well people remember the song etc.
It s never just a good song with good vocals. There is so much more thant this. And in the end it all comes to if people like it enough to vote for it. And does those people cares about the quality or if Netherlands had better vocals ? No they just voted for what they liked best, all of them for various reasons.
Conchita had the people who liked her song, people who were surprised she was a good singer when they expected a joke act, people who wanted to support her, people who liked her message of tolerance, people who actually remembered her song more because she was a lady with a beard, people who heard and like her song before because of the buzz.
So it's true that her victory was a lof of things but it was the same for everyone.
Lena didn't win only because she had a good song, people voted for her because she had a great personality on stage, because she had a latter draw and they remembered her, because she was good-looking, because they thought Armenia was weaker and before and after that it was ballads so she stand out even more.
It s unfair to put on trial and to say she won for other reasons than the songs when all the winners got votes for various reasons and every artist in eurovision 2014 also got votes for others reasons than just a pure judgement on the song quality