"most diesels are far superior."
Remind me of that, next time you need to casually grab your genset, carry it to the dink, and bring it a mile away for some reason.
The Honda's are designed for easy portability, i don't see any diesel genset competing with them in that area.
Diesel, like an army 4x6, is absolutely great for some jobs. Totally unsuitable at others. Of course if you need the 4x6, the Honda ain't gonna do it.