Marcus Diaz
EF5
This is one of the first images from the town of Guiuan, which was the site of the first landfall.
In the lower part of the image, the main damage inflicted to Tacloban City appears to be disintegration of nearly every structure, including trees (with many trees showing violent tornado-like damage, such as debarking). How anyone can survive being in something like this is hard to understand (including the group of chasers I know that actually were in the northern part of Tacloban City - Maybe that area of Tacloban City was a bit north of the strongest winds)?
Tacloban didn't experience the most intense winds for a few reasons, the most significant being that the northern eyewall had already begun interacting with land (particularly Eastern Samar, which likely did experience peak winds). If Josh's pressure readings are reasonably accurate (~960mb at/near the northern edge of the eyewall), even with a very tight pressure gradient I'd say that would suggest Haiyan had started to weaken somewhat by the time it reached Tacloban. I saw a blog mention that a reading of 889mb was taken during landfall on Guiuan, but as there's no official source thus far I'd treat that with a degree of skepticism. I don't think there's any question that Haiyan was above (perhaps well above) Cat. 5 threshold for some time before and possibly during the first landfall on Eastern Samar. It's possible some areas in or south of Tacloban also experienced Cat. 5-intensity winds, but most likely nothing like Haiyan's peak intensity.
Brutal surge damage before and after pics
http://online.wsj.com/news/articles/SB10001424052702303914304579193971305978200?mod=e2tw