Yes, I am working on a Diesel VS Diesel video review. I strongly suspect it is going to be very one sided, particularly as it seems the Hornby model has been discontinued (and finding one from the last few years proving very difficult!)
The Bachmann Diesel has seen a few Youtube video reviews, all I will say is that my initial impression of Donald & Douglas remains steadfast for the moment in the "best of" stakes.
However I think there's another issue Bachmann needs to address with the latest influx of the models in question, and that is partially retooling older models in their range. More on that in a separate video, in the future.
Until next time!