I don't conform to those who assert that 10k and 5k are nearly the same races. Compare the 5k and 10k of Bejing 2008 and London 2012 and you will find the variances easily.
5k has much more in common with 1500m because, in recent years, it has been transformed into a 1500m race with a 3500m jogging ( very slow ) preperation session. It is appropriate for middle distance runners. In opposition, 10k-races are always highly dramatic in their development – beginning slow, but then coming into speed erruptions eliminating one racer after the other. And you can observe interesting sub races within the race: Remember how Shalane Flanagan won her bronce medal in Bejing hunting and fighting down Linet Masai and Lucy Kabuu.
10k races requires highest degrees of endurance in comibination with resistance against pace fluctuations and the ability for enormous finishing speed. And it needs a lot of running intelligence to apply the appropriate tactics along the ongoing distance of 25 laps.
So, definetely: The real queen of distance running is the winner of the 10k due to the combination of required abilities.
It is a misery that the TV doesn't show the whole race in its develepment but only single sections – mainly the first lap and the 2 last laps. So, as a TV spectator you are not able to catch the moment when the take-off begins. They – the TV broadcaster - don't understand that the result is nothing without the way to the result. They don't be aware that although nothing seems to occurr every moment is in tension of the possibility of an unpredicatble shift of mutual action within the running pack.