I’m lucky enough to have flown in both both business and first (upgrade!) on a 747, although a long time ago. The front was a bit more spacious, and since there

I’m lucky enough to have flown in both both business and first (upgrade!) on a 747, although a long time ago. The front was a bit more spacious, and since there is no cockpit in front it feels quite different to upstairs. The upstairs business class cabin on the -400 was also larger (more people flying) if I remember correctly. A lot less people fly first than business. In first you are ahead of the front wheels, so when turning during taxi, it’s quite an odd sensation.