I partly disagree.myurr wrote: Lewis definitely looked a little faster today and had he been in front would probably have been able to pull a gap to Nico at a tenth or two per lap.
On the supersofts at the beginning you are surely right. Towards the end on the Mediums Hamilton seemed to be mostly a tiny bit slower. The gap closed down again a couple of times due to Rosberg being held up by lapped cars. He lost 2s+ leads three times due to that ending up again only 0,6 - 0,8s in front of Hamilton. Then increased the gap again in two to three tenths per lap. Probably Hamitons Mediums started to deteriorate earlier than Rosbergs.
The eye problem finally opened the gap up massively but at that time Hamilton was already more than 2s behind Rosberg again.
Anyway the difference either way was so small that whoever of the two would be in the lead after the pit stop would safely win the race.
Overtaking was difficult even between cars whose lap times differed by 2s+.
Sounds almost like a Monaco GP...