Larry Gebhardt's thoughts:
If I had to pick a favorite it would be the Azo print. I feel this is due to the greater overall contrast of the Azo print. The shadows are darker and consequently there is much more local contrast in the sheet metal texture. I wonder if you could have printed the Ilford at a higher grade and acheived the same result.
The Azo print also has a nicer color than the Ilford paper. The Ilford in Amidol seems to have taken on a slightly magenta tone which I do not like. The Azo is a color I have never acheived in with other papers and developers. I am not sure I like it more than the Forte in a glycin based developer, but it is very pleasing.