Has anyone compared the reverse herringbone seats?
 

Has there been a web site that compared all the types of reverse herringbone seats?

It seems that majority of carriers are now installing either the reverse herringbone or staggered business seats. Especially the former are almost all looking alike although there are several different manufacturers: Jamco, Safran, Thompson, etc. Of course, each airline will have its own tweaks to the overall design, but within a manufacturer, there has got to be some things consistent like footwell room, storage options, etc.

I think if anyone did it would be paxex.aero I know they have reviewed all of the seats but I don't know they've done any type of rankings or thoughtful comparisons.

12.5 Hour Review
 

I had 12.5 hours to review a JAL herringbone seat from LAX-KIX, business class.
It sucked.
It was the most uncomfortable seat I have ever sat in. Narrow seats with a small box like compartment to put your feet in.
The lie flat was like sleeping on a plywood bench, even with the cushion.

I just realized that Skytrax does have a category "best business class seat" somewhere there but it does not specify or name the exact product as NH has several, for example. So do other carriers.

reverse herringbone designs do get repetitive, but yeah, manufacturers like safran and thompson have some trademark features. i usually rely on YouTube reviews or blogs for side-by-sides, though it would be awesome if there was one master comparison site.

We had a great experience on Cathay on A35K in business class recently when flying JFK-HKG. These planes have the Safran Cirrus III seats in a reverse herringbone. I have to say that these are my all-time favorite business class seats. BA Club suites (also reverse herringbone) come a close second. In point of comparison, I have traveled in business class on Emirates, United, British Airways, Swiss and Lufthansa .