Ben Schlappig has the answer:

I was blown away by my Singapore Airlines business class experience, and think they may just have my favorite business class product in the world.

And he's someone who has not only flown First with Singapore (for anyone who's done it, you know what I mean), but even the incredible Suites. 

So Business it is here. Great review, go and read it.

Certain feel of SWISS First (image credit: Ben Schlappig)

Certain feel of SWISS First (image credit: Ben Schlappig)