I cannot see very well in those pics, but in real, from the air, 27L looks like the runway which helped to save the 777 together with the pilots skills. In real, it looks as the stretch of clear grass before 27L is slightly longer than the one in front of 27R. I am not the only one stating the same in here.
I could be wrong, I have not got the official measurements, but in real life, and looking from the air, it definitely looks as if the stretch of clear grass in front of 27R is shorter than the equivalent on the L.
It might just be an optical illusion but many here stated the same impression.
In a case like this one the availability of the above green stretch of clear wet grass has been a very important factor.
