An excellent post. Unless we know what the match characteristics are that the OP is interested in, we''l give him all our favourite films in 400+ in list form
pentaxuser
You are right. Sorry I was not that specific.
I like the finer grain look with these newer emulsions. I know rodinal isn't the best for this, but from what I've seen in slow speed in 120 it's not that bad. With hc110 it's pleasing, at the very least to my eye.
The most important thing in my mind is pairing with the developers I use. I tend to shoot and store, then spend a day batch processing. That's why I prefer these developers. So this might not be the most technical of discussions.
I tend to shoot at sunrise or around sunset, so reciprocity similarities would be nice but not the most important thing to me as the vast majority of my shots don't warrant me worrying about failure.
Right now I am looking at TMY400, Delta 400, and will give a go with Pancro 400.